This collection consists of artworks, sketchbooks, study materials, journals, and slides which document the creative process of John Jackson with ancillary materials showing his involvement in the Cleveland and Philadelphia art scenes. It contains some personal materials including correspondence, calendars, slides, and an oral history conducted posthumously with the artist's sisters and friend.

This is a small collection of photographs of Cleveland area architecture and sculpture compiled for Mr. Campen's publications and in connection with the "Art in Architecture, Cleveland" project. Some of the images can be found published but some are not. Copyright is held by Mr. Campen.