Items
Relation is exactly
Curtis, Cyrus Hermann Kotzschmar
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[E1914AS], Letter from Thomas Alva Edison to Richard Cockburn Maclaurin, Massachusetts Institute of Technology, July 26th, 1919 1919-07-26
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[F5C08N], Letter from Kate Stanwood (Mrs Cyrus H.K.) Curtis to Mina Miller (Mrs Thomas A.) Edison, February 12th, 1931 1931-02-12