Salomon van Thijn married Gerritje Simon van der Horst on 2 March 1906. The ceremony took place in Haarlem. His wife died on 20 March 1935.
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The funeral records at the Jewish cemetery in Haarlem reveal that Salomon van Thijn was buried there.
In August 1940, an obituary was placed in the Nieuw Israëtisch Weekblad for S. van Thijn.
Nieuw Israëlietisch Weekblad, 30 August 1940