Thelma married Basil Lovell Wallis on 1 May 1943 in Johannesburg, Transvaal, Suid-Afrika. Basil was born in CA 1918 in Transvaal, Suid-Afrika; died on 30 Apr 1967; was buried on 3 May 1967 in Braamfontein, Johannesburg, Transvaal, Suid-Afrika. [Group Sheet] [Family Chart]

Thelma married Edward James van Dyk in 1967–1972. Edward (son of Coenraad Johannes van Dyk and Florence Ann Harris) was born on 9 Sep 1915; was christened on 26 Dec 1915 in Jeppestown, Transvaal, Suid-Afrika; died in Jul 1982; was buried on 22 Jul 1982 in Umbilo, Natal, Suid-Afrika. [Group Sheet] [Family Chart]