Donald and Vivian Hart of Grand Rapids, Michigan, know a thing or two about nurturing a long and happy marriage.
“It’s good to laugh together,” Donald, a World War II veteran, told ABC News during a family celebration of the major milestone. “Have fun with each other, but don’t make jokes at the expense of the other.”
At their anniversary celebration on Friday at the assisted living facility where they live, he serenaded his wife with that love song once more. “Let me call you sweetheart,” he crooned. “I’m in love with you.”
Vivian and Donald’s family claim they are the longest-living couple in the state of Michigan. The lovebirds tied the knot in 1937.
Donald and Vivian have three sons, four grandchildren, 14 great-grandchildren and 15 great-great-grandchildren, according to the local WDIV-TV.