The new union building was in its first year when the donor, Augustus Freedom Moulton, class of 1873, wrote to Donovan D. Lancaster ’27, new director of the Moulton Union: “I have been since my Freshman days impressed with the need of a place for assemblage of all the students to promote general acquaintance and  association.”

At the time of the great building campaign under President Coles, which included the Hawthorne-Longfellow Library, Coles Tower (then the Senior Center) and Morrell Gymnasium, it was decided to expand the Moulton Union. The conversion was completed in 1965, and the building dedicated on October 2 of that  year.