Robert Lee Keller, III, 71, of Hattiesburg passed away on October 16, 2020 at Merit Health Wesley. Mr. Keller was born in New Orleans, LA. on February 6, 1949. He graduated from Holy Cross High School in 1966, and went on to obtain a Bachelor’s degree from Louisiana State University. He joined the United States Army in 1970, where he served in active duty during the Vietnam War, flying cargo helicopters. He was honorably discharged in 1975. He was preceded in death by his parents, Robert Lee Keller, II. and Alice Mae Miller Keller. He is survived by his wife of 37 years, Linda Moore Keller of Hattiesburg; his brother, David R. Keller of Covington, LA; his three sisters, Kathleen Zazulak of Ponchatoula, LA, Beth Holloway of New Orleans, LA, and Marcia Keller of Covington, LA; and numerous nieces and nephews.