Dr. Raymond Gregory was born February 20, 1901, in Beeville, Texas. At age 15, he moved to Austin with his family. He received his B.A. and M.A. in organic chemistry in 1922 and 1923, respectively, from the University of Texas. He received his Ph.D in biochemistry from the University of Minnesota, and received his medical degree in 1930. Dr. Gregory completed his internship at Minneapolis General Hospital.
Dr. Gregory taught for a year after receiving his Ph.D, then joined his father-in-law in Hawarden, Iowa, to practice general medicine. From 1937-1939, he was professor and Head of the Department of Medicine at Howard University Medical School in Washington, D.C. From 1939-1940, he was professor and Head of Medicine at the University of Arkansas School of Medicine in Little Rock.
In 1940, Dr. Gregory returned to his home state as an Associate Professor of Medicine at the University of Texas Medical Branch at Galveston. He soon became chairman of the Department of Pharmacology. He later held the positions of Ashbel Smith Professor of Internal Medicine and Chairman of the Department of Internal Medicine. After retiring from UT-Galveston in 1968, Dr. Gregory worked at the Diagnostic Clinic of Houston until 1986.
Dr. Gregory died in 1988 (from "Summary of Interview with Doctor Gregory," Box 1 Folder 1; The Alcade May-June 1988).