These accessions consist of records created and maintained by Richard Emmons documenting his work as an astronomer and an engineer, his participation in Moonwatch, and his research interests.

Accession 07-154 (circa 1954-1998) includes correspondence and memoranda; theories, calculations, charts, graphs, and notes; images of astronomers, equipment, facilities, and the sky; articles written and co-written by Emmons; newspaper clippings; professional society and astronomy club newsletters; and research and reference materials such as journal articles, manuscripts, predictions, and technical documents. Some research and reference materials pre-date the date span of this accession, but would have been collected during this time period.

Accession 08-112 (circa 1935-1976, 1990-1996, 2005) documents the creation and dissolution of both the Moonwatch program as well as the North Canton Moonwatch Team. Materials include correspondence, reports, clippings, articles, fact sheets, photographs, lecture notes, announcements, newsletters, calculations, notes, and related materials as well as an autobiography of H. H. Emmons with a postscript written by his son, Richard H. Emmons.