↑ 1.01.11.2 Bertha Lubberman, in United States. 1880 U.S. Census Population Schedule. (National Archives Microfilm Publication T9) Census Place: Philadelphia, Philadelphia, Pennsylvania; Roll: T9_1182; Family History Film: 1255182; Page: 81.1000; Enumeration District: 488; Image: 0750.
Birth Date: abt 1870; Birth Place: Pennsylvania; Residence Date: 1880; Residence Place: Philadelphia, Philadelphia, Pennsylvania, United States
↑ 2.02.12.2 Bertha Daniels, in United States. 1900 U.S. Census Population Schedule. (National Archives Microfilm Publication T623) Census Place: Philadelphia Ward 10, Philadelphia, Pennsylvania; Roll: T623 1455; Page: 2A; Enumeration District: 173.
↑ 3.03.13.2 Bertha Daniels , in United States. 1920 U.S. Census Population Schedule. (National Archives Microfilm Publication T625) Census Place: Philadelphia Ward 13, Philadelphia, Pennsylvania; Roll: T625_1620; Page: 2A; Enumeration District: 252; Image: 144.
↑ 4.04.1 Bertha Daniels , in United States. 1930 U.S. Census Population Schedule. (National Archives Microfilm Publication T626) Census Place: Washington, Washington, District of Columbia; Roll: 295; Page: 3B; Enumeration District: 149; Image: 181.0.
Birth Date: abt 1871; Birth Place: Pennsylvania; Residence Date: 1930; Residence Place: Washington, Washington, District of Columbia
↑ 5.05.15.2United States. 1910 U.S. Census Population Schedule. (National Archives Microfilm Publication T624) Census Place: Philadelphia Ward 13, Philadelphia, Pennsylvania; Roll: T624_1390; Page: 2B; Enumeration District: 176; Image: 618.