| Name | Death date | Birth location | Marriage date | Age at death |
| Jacob Hauser | December 26, 1812 | | WFT Est. 1783-1808 | 60 |
| Jacob Hautz | WFT Est. 1786-1881 | | | 5 est. |
| Jacob Hautz | 1836 | Hamlin, Berks, Pa. | 1782 | 75 est. |
| Jacob Heft | WFT Est. 1797-1898 | | | 6 est. |
| Jacob Heft | January 13, 1865 | | | 61 |
| Jacob Heinrich Glatt | Aft. 1778 | Heidelberg Twp, Berks, Pa. | | 25 est. |
| Jacob Herman | WFT Est. 1799-1888 | | | 1 est. |
| Jacob Hermany | September 14, 1836 | | WFT Est. 1787-1820 | 80 |
| Jacob Horlacher | August 15, 1848 | | | 71 est. |
| Jacob Houser | December 16, 1828 | | WFT Est. 1803-1824 | 56 |
| Jacob J Styer | | | June 10, 1880 | |
| Jacob Johnson | WFT Est. 1840-1929 | | | 1 est. |
| Jacob Jones | | | August 1730 | |
| Jacob Kemmerer | WFT Est. 1793-1894 | | | 6 est. |
| Jacob Klase | WFT Est. 1835-1924 | Pa. | | 1 est. |
| Jacob Kleckner | May 31, 1847 | | 1816 | 54 |
| Jacob Kleckner | WFT Est. 1820-1919 | | | 6 est. |
| Jacob Klee | WFT Est. 1756-1845 | | | 1 est. |
| Jacob Klees | Aft. 1857 | Pa. | January 05, 1817 | 57 est. |
| Jacob Knauss | October 06, 1803 | | | 19 |
| Jacob Knauss | WFT Est. 1785-1874 | Emmaus, Salisbury Twp, Lehigh, Pa. | | 1 est. |
| Jacob Knauss | October 15, 1855 | Emmaus, Salisbury Twp, Lehigh, Pa. | | 77 |
| Jacob Knauss | Aft. 1812 | Emmaus, Salisbury Twp, Lehigh, Pa. | April 10, 1787 | 55 est. |
| Jacob Kunkle | WFT Est. 1779-1880 | | | 6 est. |
| Jacob Kuntz | October 31, 1841 | Lehigh Twp, Northampton, Pa. | | 82 |
| Jacob Leibensperger | June 22, 1878 | Pa. | | 63 |
| Jacob Leibensperger | November 27, 1863 | Lehigh, Pa. | 1832 | 52 |
| Jacob Leibensperger | February 23, 1916 | Salisbury Twp, Lehigh, Pa. | November 25, 1871 | 70 |
| Jacob Leibensperger | August 17, 1860 | Berks, Pa. | September 20, 1807 | 78 |
| Jacob Leibert | WFT Est. 1764-1853 | | | 1 est. |
| Jacob Lerch | March 14, 1826 | | | 70 |
| Jacob Lorah | Aft. 1914 | East Union Twp., Schuylkill, Pa. | | 43 est. |
| Jacob Metzger | WFT Est. 1811-1900 | | | 1 est. |
| Jacob Meyer | WFT Est. 1782-1871 | | | 1 est. |
| Jacob Meyer | WFT Est. 1790-1832 | | December 01, 1761 | 50 est. |
| Jacob Mueller | February 02, 1798 | Erbach, Zweibruecken, Pfalz, Germany | June 06, 1740 | 76 |
| Jacob Mueller | September 08, 1759 | Heidelberg Twp, Berks, Pa. | | 0 |
| Jacob Mueller | WFT Est. 1762-1851 | Heidelberg Twp, Berks, Pa. | | 1 est. |
| Jacob Odenwelder | WFT Est. 1789-1878 | Pa. | | 1 est. |
| Jacob Odenwelder | WFT Est. 1791-1880 | Pa. | | 1 est. |
| Jacob Parsons | | | | |
| Jacob Reich | WFT Est. 1813-1902 | Northampton, Pa. | | 1 est. |
| Jacob Reich | WFT Est. 1821-1866 | | WFT Est. 1805-1839 | 47 est. |
| Jacob Ritter | WFT Est. 1765-1802 | | WFT Est. 1741-1776 | 55 est. |
| Jacob Romig | WFT Est. 1785-1874 | Pa. | | 1 est. |
| Jacob Roper | | | | |
| Jacob Rothrock | December 07, 1848 | Friedberg, Stokes, North Carolina | | 77 |
| Jacob Ruch | WFT Est. 1816-1905 | | | 1 est. |
| Jacob Rudolph Ungerer | April 15, 1916 | Basel, Switzerland | June 27, 1874 | 66 |
| Jacob Scharadin | July 11, 1820 | Rauweiler, Germany | June 15, 1758 | 85 |