In 1963, Weidhaas co-authored, “The occurrence and importance of tetranychid and eriophyid mites on woody [ornamental] plants in New York" with R. M. Reeves. There are 22 boxes of slides (100 slides / box) of mites in the Weidhaas collection.
F. Reese Nevin taught acarology for the College of Arts and Science, in Plattsburgh, New York. There are 48 boxes (100 slides / box) of mites in the Nevin collection.
Mercedes Delfinado co-authored with (and eventually married) USDA Acarologist Ed Baker. Dr. Delfinado described over 60 mite species associated with host insects.
There are 120 boxes of slides (100 slides / box) of mites in the Delfinado collection.