Couple married for 75 years reveal the three key factors of a long relationship

A couple who have been married for over seven decades have shared advice to other people who want their relationships to last as long as theirs.

In 1951, Marilyn and Hank Cydrus tied the knot when they were teenagers. Marilyn was just 16 years old while Hank was 19 and they relocated to California after eloping.

Hank ended up being drafted in the Korean war and once he'd completed his service they decided to move to Ohio where they started a family.

Marilyn and Hank went on to welcome three kids and are now proud grandparents to nine grandchildren and 16 great-grandchildren.

They marked 75 years of marriage on March 3 and chatted with NBC4 about hitting the huge milestone while sharing their advice to others.

A couple who have been married for 75 years have shared their relationship advice (Getty Stock)

Sharing one key factor of a happy and successful marriage, Hank said: "Being able to share with each other the decisions they need to make, and not argue about money and things like that."

Marilyn added: "Do for each other and get along. Don’t try to find something wrong with the other person, try to find the good in them."

Is someone cutting onions?

Marilyn and Hank's granddaughter Katrina Robinson paid a moving tribute to the pair on Facebook on their anniversary and described them as 'the living example of what it truly means to choose each other every single day'.

Hank Cydrus urged people not to argue with the partner about money (Getty Stock)

"From the summers I spent with you as a child — filled with laughter, life lessons, tear filled talks at the kitchen table, and the comfort of knowing I was deeply loved — to the cherished time I get with you now, your presence in my life has been one of my greatest blessings," she wrote.

"You didn’t just build a marriage… you built a legacy. A legacy of patience, faith, sacrifice, humor, forgiveness, and enduring love. Watching the way you care for one another, respect one another, and continue to hold hands after 75 years has shaped my understanding of what marriage is meant to be."

Now someone really is cutting onions...

They marked their 75th wedding anniversary on March 3 (H. Armstrong Roberts/ClassicStock/Getty Images)

Another person who had recently been sharing advice on having a happy marriage is Harrison Ford, who has been married to Calista Flockhart for 15 years.

While accepting the SAG-AFTRA Lifetime Achievement Award, Ford said about his wife: "I want to say thank you, from the bottom of my heart, to my extraordinary, beautiful wife, Calista. And my family, who have given me love and courage through all of it."

Prior to getting the award, Ford was asked for his secret to his and Calista's marriage in a red carpet interview. He jokingly replied: "I don't tell my wife what to do."

I think the jig might be up, Harrison...