Donna Stevens is a girl who moves in next door to the Partridges at the beginning of Season 4. The Partridges involve her in the plan to win Doris Stevens over by inviting her to a picnic in the park and "forgetting" that they have a concert right after the picnic. The plan works, and by the end of the episode, Doris is friends with Shirley Partridge and Donna is dating Keith Partridge.