| Kilder |
- [S32] Avis, Times Union, Brooklyn, New York Saturday, 04 May 1935 (Troverdighet: 3).
- [S46] Ancestry.com, New York City Department of Records & Information Services; New York City, New York; New York City Birth Certificates; Distrikt: Brooklyn; År: 1892 (Troverdighet: 3).
- [S238] Find a grave, (USA), Memorial page for John Thomas Johnson (1892–25 Nov 1955), Find a Grave Memorial ID 152701499, citing Green-Wood Cemetery, Brooklyn, Kings County, New York, USA; Maintained by BKGeni (contributor 46895980). (Troverdighet: 3).
https://www.findagrave.com/memorial/152701499/john_thomas-johnson
- [S470] Folketelling USA 1925, New York State Archives; Albany, New York; State Population Census Schedules, 1925; Valdistrikt: 19; Representantskapsdistrikt: 01; Ort: Brooklyn; Län: Kings; Sida: 15 (Troverdighet: 3).
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