Over the years PSR has provided training for clergy and leaders from a wide range of religious traditions including Buddhists, Jews, Pagans, Pentecostals, and Roman Catholics.

[1] In the early 1960s, the school helped found, and then in 1964 joined, the Graduate Theological Union (GTU), a consortium of nine seminaries in the San Francisco Bay Area.

[11] The largest portion of the permanent collection was excavated under the direction of Dr. Badè at Tell en-Nasbeh, believed to be the site of the Biblical city of Mizpah, from 1926 to 1935.

Artifacts recovered from Tell en-Nasbeh encompass the entire life of the community, including lamps, jewellery, and pitchers found in the town's houses and tombs.

The gallery presents quarterly exhibits in an effort to help augment the curriculum of the GTU consortium through works which span the spectrum of religious and spiritual focus.