People may not know Diana Wenman, but they probably know her work. Any child who learned to read with the characters on “Sesame Street” and “The Electric Company,” anyone who ever followed such shows as “All My Children,” “Search For Tomorrow,” “Ryan’s Hope,” “Dark Shadows” or “Rituals” enjoyed the benefit of Wenman’s expertise. Wenman, a long-time friend of Tony and Joy Scully, recently moved to Camden from La Jolla, Calif., after deciding the community in which she lived was not conducive to how she wanted to spend her retirement years.