Western Photo Guild Unidentified Duo

Early vintage photo by Don Whitman / Western Photography Guild. Can anyone identify these models? Series 27, No. 11. sepia photo c. 1960. Silver gelatin print on linen textured heavyweight paper.4" x 5" with studio stamp on the verso. The earliest stamps (like this one) include "Series" and "No." and sometimes the series name as well. Starting in 1963 studio stamps include a zip code. In very good condition (slight rippling).