The Vassar College Exchange Program took place during the 1969 school year and served as a way to introduce both Trinity and Vassar College to being coeducational. Trinity, at the time a men's college, exchanged students with Vassar College, an institution in New York that had been a women's college until 1969.

Trinity students had to pass and be selected from an application process in order to be accepted to the one semester long exchange, and were expected to keep up a 5 class course load while at Vassar. The 25 selected Vassar girls at Trinity were reportedly treated the exact same as the men at the school, being held to the same rules and granted the same privileges (like being allowed a car on campus). They were placed on the second floor of the North Campus dormitory.

The need for the program lessoned after Trinity officially became coeducational in 1970, and was only implemented in the spring and fall semester of 1969. The reaction of a participant from each side of the exchange can be found below in the 1969 alumni magazine. Both sides, though for differing reasons, believed that the program fostered change within the colleges and that coeducation was at least possible.

The Trinity Tripod, 11/01/1968.

The Trinity Tripod, 01/16/1969.

Trinity Alumni Magenzines, Spring 1969.