| Sources |
- [S5338] 1900 US Census / Griffiths, Butler.
- [S4186] Leon Herbert Griffiths. WWII draft registration card, 1942.
- [S4758] 1940 US Census / Griffiths, Leon H.
- [S3116] Connecticut Death Index, 1949 - 2001.
Leon H. Griffiths entry, file #01466.
- [S1076] Butler Griffiths - Georgianna C. McNeill, New York marriage return & certificate no. 3217 for Brooklyn (1880).
- [S2708] Butler Griffiths, Green-Wood Cemetery, Brooklyn, NY title of ownership, lot 25626, section 146 (1933).
- [S3116] Connecticut Death Index, 1949 - 2001.
Nelli G. Griffiths entry, file #04573 and Leon H. Griffiths entry, file #01466.
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