She attended the Robinson Seminary public secondary school in Exeter, New Hampshire, and then enrolled in Wellesley College in 1917 where she was a Durant scholar.
[1] On March 28, 1922, Wiggin received a letter from professor Roland George Dwight Richardson at Brown University, who said, "at the suggestion of my good friends, Misses [Helen A.]
Merrill and [Clara E.] Smith at Wellesley," invited her to apply for a graduate assistant position in the mathematics department at Brown University.
[1] For the next three years, Wiggin taught mathematics at Hood College in Frederick, Maryland, and in 1927, she received another note from Richardson encouraging her to continue graduate work saying, "If you care to take some course for credit in absentia here at Brown, I think it could be arranged.
"[1] In 1935, Wiggin returned to the University of Chicago for a year and finished her dissertation, titled A Boundary Value Problem of the Calculus of Variations, supervised by Gilbert Ames Bliss and William Thomas Reid.