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- [S225] Majdan Królewski Parish Records, 1890-1894 (Majdan Królewski), Krzątka year 1893, act 110; Marianna Kobylarz birth and baptism.
- [S9723] Pennsylvania, U.S., Death Certificates, 1906-1972, Pennsylvania Historic and Museum Commission; Harrisburg, PA; Pennsylvania (State). Death Certificates, 1906-1968; Certificate Number Range: 023851-026550.
- [S16] New York, U.S., Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, Year: 1907; Arrival: New York, New York, USA; Microfilm Serial: T715, 1897-1957; Line: 6; Page Number: 49.
- [S9318] 1930 United States Federal Census, Year: 1930; Census Place: Dunkard, Greene, Pennsylvania; Page: 21A; Enumeration District: 0008; FHL microfilm: 2341777.
- [S9282] 1940 United States Federal Census, Year: 1940; Census Place: Dunkard, Greene, Pennsylvania; Roll: m-t0627-03512; Page: 11A; Enumeration District: 30-11.
- [S9072] U.S., Find a Grave® Index, 1600s-Current.
- [S9389] 1910 United States Federal Census, Year: 1910; Census Place: Redstone, Fayette, Pennsylvania; Roll: T624_1346; Page: 28A; Enumeration District: 0064; FHL microfilm: 1375359.
- [S9114] 1950 United States Federal Census, National Archives at Washington, DC; Washington, D.C.; Seventeenth Census of the United States, 1950; Year: 1950; Census Place: Bobtown, Greene, Pennsylvania; Roll: 2028; Page: 13; Enumeration District: 30-13.
- [S254] Krzątka Marriages, 1887-1907 (Majdan Królewski), year 1892, act 5; Wawrzyniec Kobylarz and Małgorzata Kwaśnik marriage.
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