↑ Robert Maherdie, in United States. 1910 U.S. Census Population Schedule. (National Archives Microfilm Publication T624) Census Place: Philadelphia Ward 41, Philadelphia, Pennsylvania; Roll: T624_1410; Page: 7A; Enumeration District: 1047; Image: 1091.
↑ Robert Mahorter, in United States. 1920 U.S. Census Population Schedule. (National Archives Microfilm Publication T625) Census Place: Philadelphia Ward 41, Philadelphia, Pennsylvania; Roll: T625_1642; Page: 5A; Enumeration District: 1527; Image: 713.
Birth date: abt 1875; Birth place: Pennsylvania; Residence date: 1920; Residence place: Philadelphia Ward 41, Philadelphia, Pennsylvania; boarder in the household of Thomas Maloney
↑ Robert Mahorter, in United States. 1930 U.S. Census Population Schedule. (National Archives Microfilm Publication T626) Census Place: Philadelphia, Philadelphia, Pennsylvania; Roll: 2122; Page: 8A; Enumeration District: 1204; Image: 189.0.
Birth date: abt 1871; Birth place: United States of America; Residence date: 1930; Residence place: Philadelphia, Philadelphia, Pennsylvania
Birth date: Dec 1870; Birth place: Pennsylvania; Residence date: 1900; Residence place: Philadelphia City, Philadelphia, Pennsylvania
↑ 5.05.15.2United States. 1880 U.S. Census Population Schedule. (National Archives Microfilm Publication T9) Census Place: Philadelphia, Philadelphia, Pennsylvania; Roll: T9_1188; Family History Film: 1255188; Page: 415.1000; Enumeration District: 641; Image: 0852.
Birth date: abt 1871; Birth place: Pennsylvania; Residence date: 1880; Residence place: Philadelphia, Philadelphia, Pennsylvania, United States