| | Database Title | Category | | Names |
|---|
 | Jackson Purchase Journal, Number 4, Fall 1991 | Birth, Marriage and Death Records | | 5,699 |
 | Jackson Sentinel (Maquoketa, Iowa) | Newspapers and Periodicals | | 9,102,498 |
 | Jackson Taylor and Related Families | Social, Regional and General History | | 9,175 |
 | Jacob Harold Gallinger (Late A Senator From New Hampshire) Memorial Addresses Delivered in the Senate and House of Representatives of the United States | Miscellaneous Records and Reference | | 831 |
 | Jacob Johnson of Harpswell, Maine | Birth, Marriage and Death Records | | 10,305 |
 | Jacob Johnson of Harpswell, Maine and His Descendants East and West | Social, Regional and General History | | 8,339 |
 | Jacobites of Perthshire, 1745 | Social, Regional and General History | | 2,742 |
 | Jacobs Family, as Descended from John Jacobs of Perkiomen, to the Ninth Generation in America | Social, Regional and General History | | 2,682 |
 | Jacques Lerous, the French Huguenot and Some of his Descendants Leroux, Laroe, Larue | Social, Regional and General History | | 4,287 |
 | Jagger-Gager Genealogy, Third Edition | Social, Regional and General History | | 1,081 |
 | James Abram Garfield | Birth, Marriage and Death Records | | 1,572 |
 | James and Lucretia Mott: Life and Letters | Miscellaneous Records and Reference | | 4,088 |
 | James Andrews of Dighton and Conway, Massachusetts | Social, Regional and General History | | 2,382 |
 | James Ayer: in Memoriam, Born October 4, 1815, Died December 31, 1891 | Social, Regional and General History | | 2,492 |
 | James Breck Perkins (Late A Representative From New York) Memorial Addresses Delivered in the House of Representatives of the United States, April 3, 1910 | Miscellaneous Records and Reference | | 507 |
 | James Chalmers, his Autobiography and Letters | Miscellaneous Records and Reference | | 11,657 |
 | James Dawson from Wales and His Descendants | Social, Regional and General History | | 8,940 |
 | James Dougall of Glasgow, 1699 - 1760 | Social, Regional and General History | | 37,158 |
 | James Fanning of Hopkington, Massachusetts And Some of His Descendants | Social, Regional and General History | | 3,815 |
 | James Freeman Clarke, Autobiography, Diary and Correspondence | Social, Regional and General History | | 30,270 |
 | James G. Birney and his Times | Miscellaneous Records and Reference | | 31,313 |
 | James G. Blaine | Social, Regional and General History | | 14,800 |
 | James G. Blaine: A Study of his Life and Career | Miscellaneous Records and Reference | | 9,630 |
 | James Hall of Albany | Miscellaneous Records and Reference | | 12,690 |
 | James Harris Fairchild: 68 Years with a Christian College | Birth, Marriage and Death Records | | 7,758 |
 | James Hayward Born April 4, 1750, Killed in the Battle of Lexington, April 19, 1775 | Miscellaneous Records and Reference | | 743 |
 | James Hook and Virginia Eller: A Family History and Genealogy | Social, Regional and General History | | 15,256 |
 | James Hosmer, Cambridge 1635, Settled in Concord, Massachusetts Soon After | Miscellaneous Records and Reference | | 643 |
 | James Lawrence, Captain, United States Navy, Commander of the """"""""Chesapeake, | Miscellaneous Records and Reference | | 6,135 |
 | James Lesslie of Topsfield, Massachusetts, and Some of His Descendants | Social, Regional and General History | | 3,313 |
 | James Louis Petigru: A Biographical Sketch | Miscellaneous Records and Reference | | 622 |
 | James Madison's Notes of Debates in the Federal Convention of 1787 | Miscellaneous Records and Reference | | 1,190 |
 | James Monroe Buckley | Social, Regional and General History | | 18,689 |
 | James Parshall and His Descendants | Social, Regional and General History | | 859 |
 | James Rogers of Londonderry and James Rogers of Dunbarton | Miscellaneous Records and Reference | | 366 |
 | James Russell Lowell and His Friends | Social, Regional and General History | | 3,966 |
 | James Russell Lowell: A Biographical Sketch | Miscellaneous Records and Reference | | 784 |
 | James Russell Lowell: A Biography, Volume 1 | Social, Regional and General History | | 2,917 |
 | James Russell Lowell: A Biography, Volume 2 | Social, Regional and General History | | 4,620 |
 | James Russell Lowell: His Life and Work | Miscellaneous Records and Reference | | 2,661 |
 | James T. Fields: Biographical Notes and Personal Sketches | Social, Regional and General History | | 6,004 |
 | James Tift Champlin, A Memorial | Miscellaneous Records and Reference | | 617 |
 | James Tift Champlin: A Memorial | Miscellaneous Records and Reference | | 2,425 |
 | James Tufts: A Memorial | Social, Regional and General History | | 454 |
 | Jan Cornelis Van Horne and His Descendants | Social, Regional and General History | | 7,389 |
 | Janesville Daily Gazette (Janesville,Wisconsin) | Newspapers and Periodicals | | 391,820 |
 | Janney Family | Social, Regional and General History | | 2,175 |
 | Japan Advertiser (Tokyo,Japan) | Newspapers and Periodicals | | 70,230 |
 | Jay Family Index: The Descendants of William Jay, Born Hartford County, Maryland, 1720, and Mary Vestal Jay | Social, Regional and General History | | 16,541 |
 | Jefferson City Daily Tribune (Jefferson City,Missouri) | Newspapers and Periodicals | | 345 |
 | Jefferson City Daily Tribune (Jefferson, Missouri) | Newspapers and Periodicals | | 1,752 |
 | Jefferson City Tribune (Jefferson City,Missouri) | Newspapers and Periodicals | | 7,564 |
 | Jefferson City Tribune (Jefferson, Missouri) | Newspapers and Periodicals | | 28,821 |
 | Jefferson City Weekly Tribune (Jefferson City,Missouri) | Newspapers and Periodicals | | 15,196 |
 | Jefferson City Weekly Tribune (Jefferson, Missouri) | Newspapers and Periodicals | | 53,925 |
 | Jefferson County, Colorado Inheritance Tax, 1913-1945 | Court, Land, and Probate Records | | 2,476 |
 | Jefferson Davis: Ex-President of the Confederate States of America, Volume 1 | Birth, Marriage and Death Records | | 11,155 |
 | Jefferson Davis: Ex-President of the Confederate States of America, Volume 2 | Birth, Marriage and Death Records | | 15,807 |
 | Jeffersons Memorial | Miscellaneous Records and Reference | | 8,662 |
 | Jeffries of Massachusetts, 1658 - 1914 | Social, Regional and General History | | 758 |
 | Jelke and Frazier and Allied Families | Social, Regional and General History | | 6,006 |
 | Jenckes-Jenks Genealogy | Social, Regional and General History | | 3,508 |
 | Jenkins Family Book | Social, Regional and General History | | 11,311 |
 | Jeremy Adams of Cambridge, Massachusetts and Hartford, Connecticut and His Descendants | Social, Regional and General History | | 2,647 |
 | Jesse Smith, His Ancestors and Descendents | Family Trees | | 5,999 |
 | Jewell Record (Jewell,Iowa) | Newspapers and Periodicals | | 254,830 |
 | Jewish Data | Birth, Marriage and Death Records | | 352,709 |
 | Joas Yoder Family History: Descendants of Joas Yoder and Elizabeth Stutzman | Social, Regional and General History | | 1,014 |
 | Job Judkins of Boston and His Descendants | Social, Regional and General History | | 15,498 |
 | Joel Cook, Late a Representative from Pennsylvania | Birth, Marriage and Death Records | | 1,491 |
 | Joel Lane, Pioneer and Patriot: A Biographical Sketch Including Notes About the Lane Family and the Colonial and Revolutionary History of Wake County, North Carolina | Social, Regional and General History | | 1,314 |
 | Johann Baltasar Kramer, or """"""""Baltzer"""""""" Kramer, Pioneer American Glass Blower: A Record of His Known Descendants and Relatives | Social, Regional and General History | | 4,767 |
 | Johann David Wildermuth and his Descendants, 1752 - 1964 | Social, Regional and General History | | 10,886 |
 | Johannes Hartman of Chester County, Pennsylvania and His Descendants | Social, Regional and General History | | 5,723 |
 | Johannes Kohler's Family | Social, Regional and General History | | 3,151 |
 | John and Elizabeth (Buck) Auchincloss: Their Descendants and Their Ancestry | Social, Regional and General History | | 5,800 |
 | John and Thomas Totman (Or Tatman), and Their Descendants | Social, Regional and General History | | 2,308 |
 | John B. McFerrin: A Biography | Social, Regional and General History | | 4,373 |
 | John Bramwich, Research Notes | Birth, Marriage and Death Records | | 4 |
 | John Brown and His Men: with Some Account of the Roads They Traveled To Reach Harper's Ferry | Social, Regional and General History | | 12,568 |
 | John Burroughts: Boy and Man | Miscellaneous Records and Reference | | 11,503 |
 | John Cary, the Plymouth Pilgrim | Social, Regional and General History | | 10,976 |
 | John Daniel, Sr., 1724-1819, of Essex County, Virginia and Laurens County, South Carolina His Virginia Ancestry and Some of His Descendants | Social, Regional and General History | | 15,891 |
 | John Elderkin: One of the Founders of Connecticut and Some of His Descendants | Social, Regional and General History | | 761 |
 | John Fishback (son of Harman, son of Harman) was Born in Culpeper County, Virginia March 3,1779 Died July 14 1861 | Social, Regional and General History | | 1,085 |
 | John Fitch: The First in the World's History to Invent and Apply Steam Propulsion to Vessels Through Water, January 21, 1743 - July 2, 1798 | Social, Regional and General History | | 1,669 |
 | John Foster: Life and Thoughts | Birth, Marriage and Death Records | | 5,646 |
 | John French, Jr. of Taunton, Berkley, Middleboro, and Oakham, Massachusetts, and His Descendants | Social, Regional and General History | | 1,879 |
 | John G. Paton: An Autobiography, Volume 1 | Miscellaneous Records and Reference | | 1,455 |
 | John G. Paton: An Autobiography, Volume 2 | Miscellaneous Records and Reference | | 1,817 |
 | John Gage of Ipswich | Social, Regional and General History | | 11,359 |
 | John Gibson of Cambridge, Massachusetts, and His Descendants, 1634 - 1899 | Social, Regional and General History | | 39,291 |
  | John Grady (1710-1787) of Dobbs and Dublin, With Some of His Descendants | Social, Regional and General History | | 3,869 |
 | John Granbery | Social, Regional and General History | | 25,384 |
 | John Graves Simcoe, 1752 - 1806: A Biography | Social, Regional and General History | | 14,161 |
 | John Greenleaf Whittier: His Life, Genius, and Writings | Social, Regional and General History | | 1,733 |
 | John Grow of Ipswich | Social, Regional and General History | | 24,024 |
 | John H. B. Latrobe and His Times, 1803 - 1891 | Miscellaneous Records and Reference | | 5,264 |
 | John Hall of Wallingford, Connecticut | Miscellaneous Records and Reference | | 2,288 |
 | John Hall of Wallingford, Connecticut: a Monograph | Social, Regional and General History | | 2,983 |
 | John Hall: Pastor and Preacher | Miscellaneous Records and Reference | | 5,257 |
 | John Hamilton - Yeoman of Concord: Sketches of Ten Generations of One Branch of the Hamilton Family in America (1658 - 1958) | Social, Regional and General History | | 5,106 |
 | John Hayes of Dover, New Hampshire: A Book of His Family, Volume 1 | Social, Regional and General History | | 33,422 |
 | John Hayes of Dover, New Hampshire: A Book of His Family, Volume 2 | Social, Regional and General History | | 33,775 |
 | John Hill of Dorchester, Massachusetts, 1633 | Social, Regional and General History | | 7,517 |
 | John Howard Payne: A Biographical Sketch of the Author of Home, Sweet Home | Miscellaneous Records and Reference | | 4,657 |
 | John Humfrey: Massachusetts Magistrate | Miscellaneous Records and Reference | | 865 |
 | John Huntley of Lyme, Connecticut and His Descendants | Social, Regional and General History | | 63,938 |
 | John J. Robinette: Peerless Mentor: An Appreciation | Social, Regional and General History | | 10,467 |
 | John Johnston of New York, Merchant | Birth, Marriage and Death Records | | 4,951 |
 | John Keep of Longmeadow, Massachusetts | Birth, Marriage and Death Records | | 19,531 |
 | John Keep of Longmeadow, Massachusetts, 1660 - 1676 | Social, Regional and General History | | 14,565 |
 | John Kitchel and Esther Peck, Their Ancestors, Descendants and Some Kindred Families | Birth, Marriage and Death Records | | 6,634 |
 | John Lawrence of Watertown and Groton, Massachusetts and Some of His Descendants, 1635 - 1949 | Family Trees | | 182 |
 | John Lazell of Hingham and Some of His Descendants | Social, Regional and General History | | 13,198 |
 | John Lee of Farmington, Hartford County, Connecticut, and His Descendants | Family Trees | | 20,923 |
 | John Lee of Farmington, Hartford County, Connecticut, and His Descendants, 2nd Edition | Social, Regional and General History | | 38,489 |
 | John Leigh of Agawam (Ipswich) Massachusetts, 1634 - 1671 | Social, Regional and General History | | 34,415 |
 | John Leigh of Agawam (Ipswich) Massachusetts, 1634 - 1671: and His Descendants of the Name of Lee | Social, Regional and General History | | 10,798 |
 | John Lothrop Motley and His Family: Further Letters and Records | Social, Regional and General History | | 2,404 |
 | John Merrick, A Biographical Sketch | Social, Regional and General History | | 1,404 |
 | John Milton Gregory | Miscellaneous Records and Reference | | 6,143 |
 | John North of Farmington, Connecticut, and His Descendants | Family Trees | | 14,829 |
 | John Paul Jones Commemoration At Annapolis, April 24, 1906 | Miscellaneous Records and Reference | | 3,442 |
 | John Pierpont: A Biographical Sketch | Miscellaneous Records and Reference | | 320 |
 | John Rogers of Marshfield and Some of His Descendants | Social, Regional and General History | | 7,423 |
 | John Rudolph Waymire and the First Three Generations of His Descendants as Known March 1, 1925 | Social, Regional and General History | | 2,870 |
 | John S. Chambers, Son of John Story and Elizabeth Scudder Chambers, November 27, 1823 - February 23 1901 | Birth, Marriage and Death Records | | 479 |
 | John Salter, Mariner | Miscellaneous Records and Reference | | 1,293 |
 | John Sevier As a Commonwealth-Builder | Social, Regional and General History | | 1,862 |
 | John Sherman's Recollections of Forty Years in the House, Senate and Cabinet, Volume 1 | Miscellaneous Records and Reference | | 5,612 |
 | John Sherman's Recollections of Forty Years in the House, Senate and Cabinet, Volume 2 | Miscellaneous Records and Reference | | 6,356 |
 | John Smith's Map of Virginia: With a Brief Account of Its History, Map | Social, Regional and General History | | |
 | John Stoddard of Wethersfield, Connecticut, and His Descendants, 1632 - 1872 | Social, Regional and General History | | 4,021 |
 | John Todd: The Story of his Life | Social, Regional and General History | | 3,163 |
 | John Viall of Swansey, Massachusetts: Some of His Descendants | Social, Regional and General History | | 3,211 |
 | John Waldron of Dover, New Hampshire | Social, Regional and General History | | 750 |
 | John Watts de Peyster, Volume 1 | Miscellaneous Records and Reference | | 8,312 |
 | John Watts de Peyster, Volume 2 | Birth, Marriage and Death Records | | 10,295 |
 | John Wellborn Root: A Study of His Life and Work | Miscellaneous Records and Reference | | 1,566 |
 | John Whitehead of New Haven and Branford, Connecticut | Social, Regional and General History | | 185 |
 | John Winchester of New England and Some of His Descendants | Social, Regional and General History | | 9,791 |
 | John Winchester, 1616 - 1694: A Settler of New England | Social, Regional and General History | | 1,278 |
 | John Winchester, 1616-1694, a Settler of New England, and One Line of His Descendants | Social, Regional and General History | | 3,657 |
 | John Wood of Attercliffe, Yorkshire, England and Falls, Bucks County, Pennsylvania and His Descendants in the United States | Social, Regional and General History | | 4,254 |
 | John Wood of Rhode Island, and his Early Descendants on the Mainland | Social, Regional and General History | | 27,743 |
 | John Woodcock of Rehoboth, Massachusetts 1647 and Some of His Descendants | Social, Regional and General History | | 8,164 |
 | John Young of Eastham, Massachusetts and Some of his Descendants | Social, Regional and General History | | 1,769 |
 | Johns Notable Australians 1906 | Family History and Biography | | 3,270 |
 | Johnson Genealogy | Family Trees | | 1,277 |
 | Johnson Genealogy: Records of the Descendants of John Johnson of Ipswich and Andover, Massachusetts | Social, Regional and General History | | 15,439 |
 | Johnson, Hicks and Allied Families: Genealogical and Biographical | Social, Regional and General History | | 4,118 |
 | Johnsonian Gleanings, Part VII: The Jervis, Porter and other Allied Families | Social, Regional and General History | | 21,583 |
 | Johnsons of Argyll: Scotland - America | Social, Regional and General History | | 10,615 |
 | Johnston-Black Genealogy | Social, Regional and General History | | 5,195 |
 | Jonathan Trumbull, Governor of Connecticut, 1769 - 1784 | Miscellaneous Records and Reference | | 2,910 |
 | Jonathan Waterbury Genealogy: Ancestry and Some of the Descendants of Jonathan Waterbury of Nassau, New York (1766 - 1825) | Social, Regional and General History | | 27,568 |
 | Jones Genealogy: Being a Record of the Descendants of Hugh Jones of Salem, Massachusetts | Social, Regional and General History | | 5,491 |
 | Jones Records: Nathaniel and Rachel (Bradford) Jones, Ipswich, Mass., and Some of Their Descendants | Social, Regional and General History | | 281 |
 | Jones, Richardson, Duhamel and Allied Families of Maryland | Social, Regional and General History | | 39,452 |
 | Jones's Directory of Glasgow 1787 | Directories and Lists | | 5,700 |
 | Joris Janzen Van Horne and his Descendants | Social, Regional and General History | | 6,043 |
 | Joseph and Philena (Elton) Fellows: Their Ancestry and Descendants | Social, Regional and General History | | 23,927 |
 | Joseph Atkins : The Story of a Family | Social, Regional and General History | | 12,139 |
 | Joseph Greer and his Daughter | Social, Regional and General History | | 10,984 |
 | Joseph Hodges Choate: Memorial Addresses, January 19, 1918 | Miscellaneous Records and Reference | | 879 |
 | Joseph Ingham and His Descendants | Birth, Marriage and Death Records | | 3,451 |
 | Joseph Kerr of Ballygney and His Descendants | Birth, Marriage and Death Records | | 11,479 |
 | Joseph Warner, a Soldier of the Revolution with Some Genealogical Notes | Social, Regional and General History | | 865 |
 | Joseph West and Jane Owen | Social, Regional and General History | | 5,284 |
 | Josiah Gilbert Holland | Birth, Marriage and Death Records | | 3,803 |
 | Josiah Totman and his Descendants Complete Index to the Name | Social, Regional and General History | | 2,365 |
 | Jottings for Early History of the Levinge Family | Social, Regional and General History | | 5,349 |
 | Journal (Gentry,Arkansas) | Newspapers and Periodicals | | 4,380 |
 | Journal and Letters of the Late Samuel Curwen, 1775 - 1784 | Social, Regional and General History | | 19,666 |
 | Journal of a Voyage To New York (Jasper Danckaerts) | Social, Regional and General History | | 2,720 |
 | Journal of William Maclay, United States Senator From Pennsylvania, 1789 - 1791 | Miscellaneous Records and Reference | | 4,620 |
 | Journal-Advance (Gentry,Arkansas) | Newspapers and Periodicals | | 29,668 |
 | Journal-Advance and Gentry Index (Gentry,Arkansas) | Newspapers and Periodicals | | 21,779 |
 | Journal-Advance, The (Gentry,Arkansas) | Newspapers and Periodicals | | 783 |
 | Journals of the Rev. Thomas Smith, and the Rev. Samuel Deane, Pastors of the First Church in Portland | Social, Regional and General History | | 14,215 |
 | Jubilee History of Tasmania | Family History and Biography | | 19,280 |
 | Julia Ward Howe | Birth, Marriage and Death Records | | 9,384 |
 | Julien T. Davies: The Tribute to his Memory | Birth, Marriage and Death Records | | 3,641 |
 | Justus Falckner, Mystic and Scholar | Birth, Marriage and Death Records | | 2,595 |