1878-79 Property settled and log cabin built by Stephen B. Reed (died 1912) and his father, Leonard Reed (died 1879 and buried at Portal).
1912 May 22. H.E. Survey #45 Homestead (134.47A) recorded at Douglas, AZ, by G.A. Walker.
1915 July 12. Sold to Edward J. Hands by Walter S. Reed and recorded Sept. 24. July 25. Lula L. Walker, Alice R. Mills, Claudia Reed, and George C. Reed, each transferred 1/6 interest in Stephen B. Reed Ranch to Edward J. Hands. (See Edward Hands, Book 65, p. 335, July 18, 1916 "Reed Ranch")
1921 Jan. 18. Sold to Frank W. Officer by Edward J. Hands and then called Bide-a-wee Ranch.
1926 March 8. Sold to Harry A. and Emma Clark (wife) by Frank Officer. July 20. Sold to Harry A. Clark by Sheriff. Rock walls along creeks, main house, and rock foundation for what is now the laboratory built. Harry Clark died 1938.
1939 March 28. "Bide-a-wee Ranch" left to Emma Clark by Harry A. Clark. Aug. Transferred to Jerome A. and Katherine Clark. Jerome died by lightning about 1943.
1943 Oct. 15. Left to Katherine Clark by Jerome A. Clark. Transferred back to Emma Clark. (Record of Katherine Clark to Emma Clark is missing).
1946 Jan. 2. Deeded to Susan McAndrews by Emma Clark for $23,500. Called "Painted Canyon Ranch", -it was operated as a dude ranch -- source of foundations scattered about the property. Recorded May 3, 1955 to Susan McAndrews and Bernard K. McAndrews.
1950 Oct. 24. Sold to Weldon F. and Phyllis W. Heald by Susan McAndrews (a single woman). Date of record May 3, 1955.
1955 June 7. "Painted Canyon Ranch" purchased by the American Museum of Natural History with money donated by David Rockefeller ($50,000 plus $3,000 for furnishings).
THE SOUTHWESTERN RESEARCH STATION ESTABLISHED UNDER FIRST DIRECTOR DR. MONT A. CAZIER
1956 May 2. Osborn Memorial Laboratory completed.
1956 May 14. Susan McAndrews Bonnet sold 10.07 acres to SWRS
1956 Units 5-7 completed with Rockefeller and other monies
1957-58 A wing added to the laboratory through the generosity of Dr. David Rockefeller and Dr. Albert E. Parr. Mr. Herbert F. Schwartz and Mr. Bernard Heineman funded enlargement of the dining room.
1958 Rock barn rebuilt for bachelor quarters (#14).
1959 May 20. Susan McAndrews Bonnet sold Frank Preston of Butler, PA, 36.5 acres at $200 per acre.
1959-60 Units 8-13 built with National Science Foundation funds.
1962 May. Resignation of Resident Director Dr. Mont A- Cazier, replaced temporarily by Dr. Willis Gertsch and Dr. Jerome Rozen in 1962.
1962 Sept. 1. Vincent D. Roth appointed Resident Director.
1977 Frank Preston donated 36.5 acres to the Southwestern Research Station.
1977 First Cal Poly Pomona Arizona Class
1985 May 23. Wade C. Sherbrooke arrives as Assistant Director.
1986 March 1. Wade C. Sherbrooke appointed Director. Vincent D. Roth retires.
1991 Completion of Technical Equipment Laboratory (TEL) (NSF/AMNH funded).
1993 June. Completion of Animal Behavior Observatory (ABO) (NSF/AMNH funded).
1996 June. Completion of researcher storage sheds (AMNH funded).
1996 June. Completion of Live Animal Holding Facility (LAHR Library/Collections addition to the Osborn Memorial Laboratory, and renovation for Computer Room and Director's office (NSF/AMNH funded).
1997 June. Completion of winterized housing duplex, units 15 and 16 (NSF/AMNH funded).
2003 Dawn S. Wilson appointed Director. Wade C. Sherbrooke retires.