Mimsy Farmer (Born February 28, 1945).
Mimsy Farmer (born Merle Farmer) is an American actress, artist, and sculptor. She played in Spencer's Mountain (1963) and More (1969). After a brief film career in the United States, mostly portraying party-girl types, she moved to Italy. Most of her career has been spent in Europe.
Farmer guest-stars on The Donna Reed Show in three different episodes, each time playing a different one of Jeff's love interests. She appears in "The Swingin' Set" (Season 4, Episode 35), "The Father Image" (Season 4, Episode38), and "Boys and Girls" (Season 5, Episode 30).