Meredith Lynn MacRae (May 30, 1944 – July 14, 2000) was an American actress and singer known for her roles as Sally Morrison on My Three Sons (1963–1965) and as Billie Jo Bradley on Petticoat Junction (1966–1970).
Author: ABC Television. During the 1950s and 1960s, television networks, studios and program sponsors often used either advertising or publicity agencies for distribution of promotional materials. In this case, Rogers & Cowan, a publicity agency, was used to distribute the materials. Source: