Linda Eastman McCartney
Paul met Linda in 1967 at a nightclub, a few days later, Linda photographed the Beatles at Brian Epstein's home to celebrate the release of Sgt. Pepper's Lonely Hearts Club Band. After Paul's breakup with Jane Asher the following year, he invited Linda to England and they got married in 1969, welcoming their daughter, Mary, that same year. After the Beatles' break up in 1970, Paul and Linda started their own band together, Wings, while welcoming Stella (1971) and James (1977). Linda was also a successful photographer and later took part in vegatarian culinary, releasing cookbooks to help save animals. Linda died in 1998 from breast cancer.
By the time Linda entered the picture, John and Cynthia were already divorcing while Ringo and Maureen were still married. When Maureen died in 1994, Paul and Linda were both sad by the news to which Paul wrote "Little Willow" and their children are good friends. As for Cynthia, hardly not much to go on other than in 1984, Linda sent Cynthia a postcard checking in and inviting her over for a cup of tea and in the early 1989, Cynthia attended Paul's Liverpool concert. Linda did have a connection to Julian as Paul remained in touch with him to this day.
John met May in the late 1960s who was working with Allen Klein and then May started to work for John and Yoko after the Beatles' break up as their assistant. In late 1973, John and Yoko separated and Yoko fixed John and May up together; John and May broke up in early 1975 but remained friends until his death in 1980.
May and Cynthia met in 1974 when they both encouraged John to see Julian after three years of estrangement. During that time, May and Cynthia became friends as they are to this day. May and Maureen met that same year (1974) when Maureen visited New York and went to George's concert; they would see each other on occasion in New York whenever Isaac and Maureen were in the area.
Nancy Lee Andrews
Ringo met Nancy through John and May in 1974 in Los Angeles, California while separated from his wife Maureen, who remained in London with their children. Ringo and Nancy were together off and on for six years, getting engaged until Ringo fell in love with Barbara Bach. They broke up but Nancy sued Ringo for palimony. In 1990, Nancy married Edwin Barnes and lives in Tennessee, working as a photographer.
Nancy and Maureen got along well and remained friends after Nancy's breakup with Ringo until Maureen's death in 1994. Nancy and Cynthia have met a couple times over the years.
Olivia Arias Harrison
George met Olivia in the early 1970s while he was separated from Pattie; she traveled with George during his solo tour in 1974- according to Chris O'Dell's autobiography, Maureen made a brief visit along with John. George and Olivia welcomed a son, Dhani, and got married a month later in 1978 until George's death in 2001.
In 2005, Olivia was questioned about Cynthia's book which revealed George and Maureen's affair in the early 1970s.
"Cynthia has just written a book about John. That's fine, I just want to appear where I have to. I don't need to say anything about George to present him or preserve him because that's not what he would have wanted. I'm just trying to finish what he started."
In 2006, Olivia and Cynthia, along with Paul, Ringo, Barbara, Yoko, Julian, and Dhani, attended the Beatles and Cirque Du Soleil's LOVE show in Las Vegas, Nevada.
Heather Mills McCartney
Paul met Heather in 1999, a year after Linda's death. Paul and Heather got married in 2002, welcoming a daughter, Beatrice, in 2003 before separating in 2006 and divorcing in 2008.
It is not known if Cynthia and Heather have met; however in 2009, Cynthia spoke about Paul and Heather's divorce in an interview.
"She became the she-devil and he was stupid. Like me, I think he should've given it more time. He got married and it was fabulous and then the chemistry wasn't right. But you have to live with somebody long enough to know that the chemistry is right or not."
"I've made mistakes with relationships and jumped in the deep end, know knowing yourself or being comfortable with yourself without needing somebody else and that was the situation with Paul. Heather was into good causes, vegetarianism, so I understand where he was coming from."
Paul met Nancy while he was still married to Linda while they traveled to New York to visit Linda's family in The Hamptons. Paul and Nancy got together in late 2007 during their separations from Heather Mills and Bruce Blakeman. They got engaged in May 2011.
At this time, Cynthia and Nancy have not met.