[1] On August 27, 1902, MacFarland married Olive Knowles Hornbrook (b.30 June 1872, West Virginia; B.L.

[2][3] Mrs. MacFarland was a skilled technician and artist whose delicate watercolor paintings illustrated many of his scientific publications.

Frank MacFarland was an authority on the life and habits of nudibranchs and he left unfinished a comprehensive monograph on the group which was published posthumously in 1966.

[6] In 2006, the MacFarland home on the Stanford campus (designed in 1914 by Arthur Bridgman Clark) was added to the National Register of Historic Places.

[7][8] Gastropods named in honor of Frank Mace MacFarland include one genus and four species: