| Sources |
- [S9389] 1910 United States Federal Census, Year: 1910; Census Place: Brooklyn Ward 17, Kings, New York; Roll: T624_965; Page: 6a; Enumeration District: 0375; FHL microfilm: 1374978.
- [S9427] New York, New York, U.S., Index to Birth Certificates, 1866-1909, New York City Department of Records & Information Services; New York City, New York; New York City Birth Certificates.
- [S9642] New York, U.S., State Census, 1915, New York State Archives; Albany, New York; State Population Census Schedules, 1915; Election District: 20; Assembly District: 15; City: New York; County: Kings; Page: 68.
- [S9115] New York, New York, U.S., Index to Death Certificates, 1862-1948, New York City Department of Records & Information Services; New York City, New York; New York City Death Certificates.
- [S9291] New York, New York, U.S., Extracted Death Index, 1862-1948.
- [S9072] U.S., Find a Grave® Index, 1600s-Current.
- [S7740] Dzikowiec Births, 1862-1880 (Dzikowiec), year 1870, act 6; Michał Ungeheuer birth and baptism.
- [S225] Majdan Królewski Parish Records, 1890-1894 (Majdan Królewski), Majdan year 1893, act 10; Michał Ungeheuer and Marianna Dziuba marriage.
|