↑ 1.01.1 Jacob Kiefer, in United States. 1850 U.S. Census Population Schedule. (National Archives Microfilm Publication M432) Census Place: Philadelphia South Ward, Philadelphia, Pennsylvania; Roll: M432_812; Page: 143; Image: 289.
Birth Date: abt 1818; Birth Place: Germany; Residence Date: 1850; Residence Place: Philadelphia South Ward, Philadelphia, Pennsylvania