the following year. Although the program was two years, the second year was optional. Due to monetary concerns Winchell opted to complete only the first year of the program. She received a certificate in 1920.

In 1928, after Winchell had accepted a position at Columbia University, she enrolled in Columbia University School of Library Service. Her thesis was called "Locating Books for Interlibrary Loan." The essay encompassed much of the knowledge that her employer