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- [S359] Nadbrzezie Births, 1882-1928 (Trześń), year 1888, act 1 (image IMG_7759); Jan Franciszek Gielerak birth and baptism.
- [S9116] U.S., World War I Draft Registration Cards, 1917-1918, Registration State: Michigan; Registration County: Genesee; Roll: 1675570; Draft Board: 2.
- [S9717] Illinois, U.S., Federal Naturalization Records, 1856-1991, National Archives at Chicago; Chicago, Illinois; ARC Title: Petitions for Naturalization, 1906 - 1991; NAI Number: 6756404; Record Group Title: Records of District Courts of the United States, 1685-2009; Record Group Number: RG 21.
- [S9317] U.S., World War II Draft Registration Cards, 1942, The National Archives at St. Louis; St. Louis, Missouri; World War II Draft Cards (Fourth Registration), for The State of Illinois; Record Group Title: Records of the Selective Service System; Record Group Number: 147; Series Number: M2097.
- [S9318] 1930 United States Federal Census, Year: 1930; Census Place: Chicago, Cook, Illinois; Page: 5B; Enumeration District: 1147; FHL microfilm: 2340200.
- [S9282] 1940 United States Federal Census, Year: 1940; Census Place: Chicago, Cook, Illinois; Roll: m-t0627-00986; Page: 18B; Enumeration District: 103-2046.
- [S9100] U.S., Social Security Death Index, 1935-2014, Social Security Administration; Washington D.C., USA; Social Security Death Index, Master File.
- [S362] Nadbrzezie: Births, Marriages and Deaths 1826-1897, year 1868, act 7 (image DSCF3672); Wojciech Gielerak and Jadwiga Orent Marriage.
- [S370] Nadbrzezie Marriages, 1853-1891 (Trześń), year 1868, act 7; Wojciech Gielerak and Jadwiga Orent marriage.
- [S2218] Web: Genesee County, Michigan, U.S., Marriage Index, 1836-1934.
- [S9444] Michigan, U.S., Marriage Records, 1867-1952, Michigan Department of Community Health, Division of Vital Records and Health Statistics; Lansing, MI, USA; Michigan, Marriage Records, 1867-1952; Film: 127; Film Description: 1915 Wayne-1916 Genesee.
- [S5832] Michigan, U.S., County Marriage Records, 1822-1940.
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