Curtis was born in Ovalo, Texas, on August 14, 1921, to Curtis and Jewell Hancock. He graduated from Stanton High School. Following graduation, he enlisted in the Army Air Corp and served in World War II. During the War, he traveled through Egypt, North Africa, Italy, France, Tripoli, and he was part of 5 invasions and 10 campaigns. After returning from the War, he married Josephine (Dody) Houston in 1945. They moved to Lubbock where he attended Texas Tech, graduating as a petroleum geologist. While living in Lubbock, daughter Margie was born. After graduation he returned to the old fields in Midland, Texas, where son Bill was born. He worked in the oil industry until retirement in 1986 primarily out of the Denver, Colorado area. After retirement, he and Dody became snowbirds, wintering in Peoria, Arizona. Curtis enjoyed golfing, traveling in his motorhome, fishing, hunting, and flying his plane. In addition to his parents, he was preceded in death by his wife, Dody, his sister Annie Merrill, and his brother, Andrew Hancock. He is survived by his two children Margie and William, 5 grandchildren, 3 step-grandchildren, 12 great-grandchildren, 5 step-great-grandchildren, and 5 great-great-grandchildren. Curtis Hancock passed away at age 100 at Banner Boswell Hospital in Sun City, Arizona on September 7, 2021.