Dabney Sims graduated from Southwestern University in Georgetown, Texas, where he was a Kappa Sigma.
The farm that W. B. Sims owned two to three miles north of Italy, Texas, had belonged to his grandfather, John Dabney Sims, and his father, Wilson Dabney Sims.
Dallas Morning News: 18 September 1937, Italy, Texas: Dabney Sims on his Chambers Creek farm three miles north of Italy, Friday was host to the North Texas Pecan Growers at a barbeque. Hundreds inspected this work. Mr. Sims has for a number of years been pecan specialist in the State Department of Agriculture and recognized as one of the best posted authorities on pecan growing in Texas.
Waxahachie Light, 9 October 1956: Wilson D. Sims dies at local hospital Monday. Wilson Dabney Sims, 83, an Ellis County resident all his life, died Monday night in Waxahachie. He will be buried in the city cemetery. Mr. Sims had lived in Waxahachie more than fifty years. He was born between Forreston and Italy, January 11, 1883. He was a farmer and stockman, and was for twenty years head of the pecan department of the state agricultural department. He was a director of the Citizens National Bank for several years. Mr. Sims graduated from Southwestern University at Georgetown. Survivors: his widow, a son, Dabney Sims of Odessa; two daughters, Mrs. Jack Speer of Houston and Mrs. Lynn D. Lasswell, Jr. of Waxahachie; six grandchildren; and a sister, Mrs. Lee R. Campbell of Italy.