Rud Rennie married Mary Cecilia Maloney (born in Massachusetts of Canadian parentage) on 18 July 1925 at New York's Church of the Transfiguration, Episcopal (Manhattan) —"The Little Church Around the Corner"—an Episcopal church known in the 1920s for its many connections to entertainment, arts, and sports celebrities for weddings, community forums, theatricals, and funerals. There were no children. The Rennies lived in Forest Hills, Manhasset, and finally Huntington, New York. Cecil Rutherford "Rud" Rennie's wife, who went by the name Cecilia M. Rennie, died in August 1954.
