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- [S995] Durdy, Knapy & Smykla Births, 1869-1884 (Baranów Sandomierski), year 1880, act 28; Ludwik Gil birth and baptism.
- [S9348] Hamburg Passenger Lists, 1850-1934, Staatsarchiv Hamburg; Hamburg, Deutschland; Hamburger Passagierlisten; Volume: 373-7 I, VIII A 1 Band 119; Page: 1027; Microfilm No.: K_1769.
- [S16] New York, U.S., Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, The National Archives in Washington, DC; Washington, DC, USA; Passenger and Crew Lists of Vessels Arriving at New York, New York, 1897-1957; Microfilm Serial or NAID: T715; RG Title: Records of the Immigration and Naturalization Service, 1787-2004; RG: 85.
- [S9389] 1910 United States Federal Census, Year: 1910; Census Place: Johnstown Ward 15, Cambria, Pennsylvania; Roll: T624_1324; Page: 24a; Enumeration District: 0135; FHL microfilm: 1375337.
- [S9116] U.S., World War I Draft Registration Cards, 1917-1918, Registration State: Pennsylvania; Registration County: Cambria.
- [S9308] U.S., City Directories, 1822-1995.
- [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 Pennsylvania; Record Group Title: Records of the Selective Service System; Record Group Number: 147; Series Number: M1951.
- [S9723] Pennsylvania, U.S., Death Certificates, 1906-1972, Pennsylvania Historical and Museum Commission; Harrisburg, PA, USA; Pennsylvania (State). Death Certificates, 1906-1968; Certificate Number Range: 072001-075000.
- [S272] Baranów Sandomierski Parish Records, 1801-1883 (Baranów Sandomierski), Durdy year 1877, act 3; Jan Gil and Jadwiga Trela marriage.
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