Funeral services were held Wednesday for Francis B. "Frank" Stillman, a prominent geologist and former chairman of the Salt Lake County Water Conservancy District.

Mr. Stillman died at his Salt Lake City home Feb. 3, 1991, at the age of 93. He was born in East Millcreek on Nov. 8, 1897, to Charles F. and Marian Neff Stillman. He married Janet Louise Farnsworth on July 29, 1933.A 1926 graduate of the University of Utah, Mr. Stillman received a graduate degree in geology from Cornell University, N.Y., in 1927. He was employed by Phillips Petroleum Co. and later as an engineer for the Utah State Road Commission. During World War II, Mr. Stillman served as a civilian geologist for the Army.

He was one of the first breeders of domestic chinchillas in the United States and served as president and on the board of directors of the National Chinchilla Breeders Association.

Mr. Stillman also served on the Granite School District Board of Education. He was a member of the board of directors of the Salt Lake County Water Conservancy District for 28 years and served as chairman from 1961 to 1970.