May Belle Hutson Chitwood (September 17, 1908 – September 19, 1994)[1] was an American author, nematologist, helminthologist, and zoologist at the Agricultural Research Service, curator of the National Parasite Collection, and director of the primate parasite registry at University of California at Davis.
[2][3] Chitwood specialized in the morphology of nematodes early in the research of this aspect of the species, and was considered a world authority.
[6] They had two children, Edward M. Chitwood and Marie D. Chapman, living in the Washington D.C. area from 1928 through 1973.
[4] The couple loved on Long Island from 1937 to 1947, studying the nematodes of potatoes and ornamental plants.
[4] She was the director of the primate parasite registry at the University of California at Davis until 1976[2] when she retired.