- RISD for allowing the use of the early class room photographs.
- The Providence Art Club for the photograph of its buildings on Thomas Street, formally Angell's Lane.
- Angel Dean, Administrative Coordinator/Archivist at the Providence Art Club for her research and guidance.
- Lee Teverow, Reference Librarian for the Providence Historical Society for her prompt research.
- Alfred T. D. Morris, Art Advisor and guidence with restoreation and cleaning
- Catherine Burt, Rhode Island Art Historian and owner of the Burt Gallery, 540 South Water Street, Providence RI, for her historical research of Arthur Douglas.
- Jane Brown for her assistance in hosting the May 18th through May 25th 1968 exhibition of Douglas' work at the Providence Watercolor Club.
- Laurie Whitehill Chong, Special Collections Librarian at the RISD Library for her research and guidance.
- J. D. Kay, of the Rhode Island Historical Society, Rights and Reproductions Technician, for scanning and recording Douglas' etchings in book form, entitled: Woodland Rambles, Ten Etchings of Nooks and Corners in Some Old Rhode Island Farms.
- Andrew Martinez, RISD Archivist, for allowing the viewing of historical records for Douglas’ eight terms of attendance at RISD.
- Marc Frechette, of the Minuteman Press, Seekonk, MA for his expertise in color reproduction.
- John K. Allen, of Allen Research for scanning the artwork and designing this web site.