According to research, they are among the top 10 most monogamous in the UK.
Those in marriages stick around for longer, while single city girls have one partner or less each year.
Loyalty is key to May and John Rigby, who celebrated their diamond wedding anniversary earlier this year.
The pair, who live together in Fulwood, said: “I think our parents had a lot to do with teaching us to be loyal.
“If you were going to the pictures with a boy they wanted to know all about it.
“You make your marriage vows and you stick to them.
“You can’t say ‘until death’ if you are still very much alive and you are going off with someone else.
“A lot of our age group have stayed together.
“I don’t know of any of them that have split up, so maybe it is a generation thing.
“But it’s good that it is also being taught to the younger generation too. We should be telling people to stick at it.”
Muriel Jackson, 82, and husband George, 80, of Selkirk Drive, Bamber Bridge, have been married for 60 years.
They have two sons, six grandchildren and two great-grandchildren.
Muriel said: “I really don’t know why people swap and change if you like similar things and your main values are the same.
“Maybe you are lucky if you find someone you get on with.
“I’ve never had to discuss being monogamous with my children.
“Maybe it’s just there to start off with.
“Maybe they see us and try and be the same.”
The research, which polled 4,500 women across Europe, was carried out by dating website SeekingArrangement.com.
Founder Brandon Wade, said: “Monogamy is not dead.
“Women are keeping relationships and working on them, rather than just moving on to the next one.”
In contract, research showed 63 per cent of women in Manchester had eight or more partners each year.