The collection consists of original pen and ink drawings by Charles D. Hubbard of Yale-related buildings in New Haven, Branford and Killingworth used in the publication Yale and Her Books. The following buildings are represented: House of Reverend Samuel Russel, Branford; Killingworth meeting-house; Saybrook Point; the first Yale College house; chapel and library (later Athenaeum); Lyceum; old chapel; old library; Chittenden Hall; Linsly Hall; and Sterling Memorial Library.