Darrell was born on June 21, 1934 in Thomas, Oklahoma to Charles and Nora (Settles) Hamar and passed away Thursday, August 29, 2019 at his home in Nashville, Tennessee at the age of 85 years and 69 days.

Darrell was raised in the Thomas, Oklahoma area and graduated from Thomas High School in 1952. While in school, he played on the football team winning 2 state football championships. In 1953 he married Betty McClure. They made their home in Thomas and had 2 sons, Brent and Chuck. Darrell farmed for a period of years while also taking classes at Southwestern Oklahoma State College in Weatherford, Oklahoma. After earning a bachelor's degree in mathematics, they moved to Elk City, Oklahoma in 1961 where he taught high school math and helped coach the school football team for one year. He was accepted into the Federal Bureau of Investigation in 1963 and they moved to Virginia for Special Agent training. He served as a Special Agent in the FBI for 21 years while assigned to offices in Illinois and Memphis, TN, and then to Nashville, TN where he completed his federal career. After retiring from the FBI, he served as a contract investigator for the United States Department of State and worked independently in private investigations in support of the legal community. After the death of Betty, he married Carol Friesen of Oklahoma in 2007.

Darrell enjoyed supporting and coaching his sons' sports teams throughout his life and was a lifelong fan of University of Oklahoma football. He loved the Lord, and he loved and enjoyed spending time with his family and friends.

Darrell was preceded in death by his parents, Charles and Nora Hamar; his wife of 54 years, Betty Hamar; his 4 brothers James Hamar, Harold Hamar, Harley Hamar, Curtis Hamar, and Everett Hamar; his 2 sisters Zella Conkling Hook and Nadine Muno. He is survived by his current wife Carol Friesen Hamar of Oklahoma; his 2 sons, Brent Hamar and wife Ploy, and Chuck Hamar and wife Amy, his 6 grandchildren Megan, Kaylee, Keegan, Tucker, Brooke, Maggie, and 1 new great-grandson Jackson all of Nashville, TN; many nieces and nephews.