The couple were married by Rev. Robert Shanklin at the home of the bride's parents on June 19, 1949.
Mrs. Koch was the former Mary Lou Handlin of rural Brazil.
Cards are welcome and may be mailed to 33 E. Church St., Brazil, Ind., 47834.
The couple have four children, Mary Ann and husband J.R. Isaacs, Becky and husband Ben Adams, John and wife Gloria Koch, and Sally Elder.
They also have 13 grandchildren and 16 great-grandchildren.