| Sources |
- [S225] Majdan Królewski Parish Records, 1890-1894 (Majdan Królewski), Huta Komorowska year 1893, act 1; Jan Kopeć birth and baptism.
- [S16] New York, U.S., Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, Year: 1910; Arrival: New York, New York, USA; Microfilm Serial: T715, 1897-1957; Line: 1; Page Number: 80.
- [S9318] 1930 United States Federal Census, Year: 1930; Census Place: Bayonne, Hudson, New Jersey; Page: 9B; Enumeration District: 0235; FHL microfilm: 2341083.
- [S9322] 1920 United States Federal Census, Year: 1920; Census Place: Bayonne Ward 5, Hudson, New Jersey; Roll: T625_1040; Page: 4B; Enumeration District: 44.
- [S9116] U.S., World War I Draft Registration Cards, 1917-1918, Registration State: New Jersey; Registration County: Hudson; Roll: 1711904; Draft Board: 1.
- [S9078] U.S., Social Security Applications and Claims Index, 1936-2007.
- [S16] New York, U.S., Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, Year: 1910; Arrival: New York, New York; Microfilm Serial: T715, 1897-1957; Microfilm Roll: Roll 1574; Line: 1; Page Number: 80.
- [S195] Newspapers.com Obituary Index, 1800s-current, Wilkes-Barre Times Leader, the Evening News, Wilkes-Barre Record; Publication Date: 7/ May/ 1952; Publication Place: Wilkes-Barre, Pennsylvania, United States of America; URL: https://www.newspapers.com/image/396257987/?article=3ee5f44d-ac77-42ed-8df0-608.
Wilkes-Barre Times Leader, the Evening News, Wilkes-Barre Record; Publication Date: 7/ May/ 1952; Publication Place: Wilkes-Barre, Pennsylvania, United States of America; URL: https://www.newspapers.com/image/396257987/?article=3ee5f44d-ac77-42ed-8df0-608
- [S9125] New Jersey, U.S., Death Index, 1848-1878, 1901-2017, Year Range: 1952; Surname Range: A-K; Title: New Jersey, Death Indexes, 1904-2000.
- [S247] Huta Komorowska Marriages, 1856-1915 (Majdan Królewski), year 1889, act 9; Jakub Kopeć and Marianna Kopeć marriage.
- [S9284] New Jersey, U.S., Marriage Index, 1901-2016, New Jersey State Archives; Trenton, New Jersey; Marriage Indexes; Index Type: Bride; Year Range: 1915-1919; Surname Range: A - B.
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