American Forestry Association
Sessions elected to membership in 1928.
California Federation of Garden Clubs
Sessions elected to honorary membership in 1932.
Cactus and Succulent Society of America
Sessions made an Honorary Vice President in 1933
Pacific Beach Chamber of Commerce
Sessions made an honorary member (date?)
San Diego Business and Professional Women’s Club
Sessions made an honorary member in August 1928
San Diego Rose Society
Sessions awarded an Honorary Life Membership on Nov. 6, 1939
San Diego Society of Natural History
Sessions named an Emeritus Fellow, 1931
ZLAC Rowing Club of San Diego
Sessions made an honorary member in 1932