He was married for more than 57 years to Hilda Jean Gainer.
Born May 28, 1932, he was the son of the late Clyde A. Gainer and Margaret Schaefer Gainer.
In addition to his wife, he is survived by his son, David J. Gainer (Ethel); and his daughter, Robin Gainer Myers; and two grandchildren, David Joseph Gainer and Naomi Myers.
In addition to his parents, he was preceded in death by his brother, Clyde "Nicky" Gainer; and his son-in-law, Robert Myers.
He enlisted in the Marine Corps in 1950. He served in the Korean War and was honorably discharged in 1954. In 1959, he entered the U.S. Park Police, serving as a patrol officer. He then became a motorcycle officer, reaching the rank of sergeant, before retiring in 1980 with numerous citations and service awards. He served on the prestigious Presidential Escort Motorcycle Division.
After retirement, he worked at Camp St. Charles for Boys in Cobb Island. He was an active member of the Hughesville Volunteer Rescue Squad.
He loved working with horses, spending time with his grandchildren and working on his property and home.
The family will receive friends Thursday, Feb. 4, from 6 to 8 p.m. at Brinsfield-Echols Funeral Home in Charlotte Hall, where a funeral service will be held Friday, Feb. 5, at 11 a.m. The Rev. Glenn Willis will officiate. Interment will take place Feb. 5, at 12:30 p.m. at Maryland Veterans Cemetery in Cheltenham. Pallbearers will be Danny Morris, Bill Saunders, Allen Glen Barkdoll, John Shea, Mike Riess and Ray Buckler.
Memorial contributions may be made to the Hughesville Volunteer Rescue Squad, 15245 Prince Frederick Road, Hughesville, MD 20637; Immaculate Conception Catholic Church, P.O. Box 166, 28297 Old Village Road, Mechanicsville, MD 20659; or Hospice of Charles County, P.O. Box 1703, La Plata, MD 20646.