| Name | Birth date | Birth location | Spouse | Marriage date | Death date | Death location | Name source info. |
| Hazlett, Ellen | | | McGaughey, Thomas Wilson | January 25, 1866 | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Fannie Sloan | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, George M. | May 2, 1875 | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Gertrude | October 2, 1867 | | | | September 28, 1872 | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Horace M. | June 9, 1860 | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Ida May | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, James | January 1, 1831 | | Elricks, Mary Ann | May 12, 1853 | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, James Covode | October 2, 1879 | Westmoreland Co., Pa. | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, James H. | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, James L. | July 29, 1827 | Indiana Co., Pa. | Lewis, Elizabeth | February 27, 1851 | Unknown | | a Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). pp223 |
| Hazlett, Jennie | November 12, 1862 | | | | August 25, 1863 | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Jennie E. | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Jennie Reed | July 26, 1876 | Rio Janeiro | | | March 17, 1877 | Rio Janeiro | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, John | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, John A. H. | April 24, 1869 | | | | January 1, 1871 | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, John L. | December 11, 1820 | | Marshall, Elizabeth | December 15, 1859 | Unknown | | a Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). pp222 |
| Hazlett, John Marshall | December 6, 1854 | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Leslie | April 15, 1794 | Born while crossing the ocean from Ireland to America | Marshall, Jane | January 27, 1820 | November 17, 1877 | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Leslie L. | November 12, 1835 | Indiana Co., Pa. | Marshall, Susan H. | February 24, 1859 | Unknown | | a Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). pp226 & 231 |
| Hazlett, Lizzie Jane | December 13, 1861 | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Lottie B. | July 22, 1874 | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Lulic | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Luther Alvin | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Maggie Allen | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Maggie W. | February 20, 1870 | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Martha | March 4, 1830 | | George, James | | 1849 | | a Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). pp225 |
| Hazlett, Mary | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Mary | November 15, 1822 | | McFarland, James | October 31, 1844 | Unknown | | a Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). pp222 |
| Hazlett, Mary Clarissa | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Mary Elder | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Mayes | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Milton | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Minnie | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Nettie | July 22, 1862 | | Hosick, T. S. | April 1, 1882 | Unknown | | a Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). pp222 |
| Hazlett, Ney | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Nina Jewell | January 31, 1878 | Rio Janeiro | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Rebecca J. | September 10, 1843 | | Marshall, Thomas Elder | January 12, 1860 | November 27, 1880 | | a Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). pp222 |
| Hazlett, Robert M. | November 11, 1840 | | ?, ? (Hazlett) | | Unknown | | a Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). pp226 |
| Hazlett, S. C. | August 1, 1836 | | Dixon, Irwin | January 26, 1854 | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Samuel M. | May 15, 1825 | Indiana Co., Pa. | Clark, Mary | | Unknown | | a Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). pp223 |
| Hazlett, Sarah | | | Long, Richard Smith | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Sarah | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Sloan | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, Theodore | March 29, 1872 | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, William | | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, William C. | September 26, 1865 | | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, William H. | | | McGaughey, Jane | October 12, 1865 | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, William Harrision | August 10, 1856 | | | | September 21, 1877 | Illionois | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |
| Hazlett, William M. | March 8, 1833 | | Sloan, Mary Ann | | Unknown | | Brøderbund Software, Inc., World Family Tree Vol. 3, Ed. 1, (Release date: February 9, 1996), "CD-ROM," Tree #3830, Date of Import: Oct 24, 1997. |
| Hazlett, William R. | December 30, 1882 | Rome, Ohio | | | Unknown | | Marshall, O. S., (The Marshall Family - A History of the Descendants of William Marshall 1722-1796). |