| Sources |
- [S5223] Chmielów Births, 1864-1900 (Miechocin), year 1879, act 74; Szczepan Grdeń birth and baptism.
- [S8760] Pennsylvania, U.S., Federal Naturalization Records, 1795-1945, The National Archives at Philadelphia; Philadelphia, PA.
- [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.
- [S9322] 1920 United States Federal Census, Year: 1920; Census Place: West Deer, Allegheny, Pennsylvania; Roll: T625_1530; Page: 40B; Enumeration District: 847.
- [S9318] 1930 United States Federal Census, Year: 1930; Census Place: West Deer, Allegheny, Pennsylvania; Page: 2B; Enumeration District: 0851; FHL microfilm: 2341726.
- [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: 059001-062000.
- [S5241] Miechocin Parish Marriage Banns, 1869-1884 (Miechocin), year 1877, act 42; Józef Grdeń and Anna Urbaniak marriage bann.
- [S9284] New Jersey, U.S., Marriage Index, 1901-2016, New Jersey State Archives; Trenton, New Jersey; Marriage Indexes; Index Type: Bride; Year Range: 1910-1914; Surname Range: T - Z.
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