John Fredrick Lehmann
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- 1 John Fredrick Lehmann [1]
- Louise Neumeyer
- 2 Ernest Joseph Lehmann [1.1] b. 9 Jul 1918 d. 31 Jul 1993
- + Mary Jean Schweickart b. 20 Dec 1922 d. 21 Nov 1970
- + Mary Jean Schweickart b. 20 Dec 1922 d. 21 Nov 1970
- 2 Ernest Joseph Lehmann [1.1]