Nancy and Ronald Reagan had what many referred to as the "greatest love affair in the history of the American Presidency." And even after Reagan left the presidency and was diagnosed with Alzheimer's, Nancy stayed right by his side, caring for the love of her life and heartbroken when he passed away in 2004. In this 1955 photo, then-actor Ronald Reagan and his wife Nancy are sitting together, holding hands at a party in Hollywood. In fact, they were rarely ever seen in public when they weren't holding hands. At times, Nancy worried that they were so in love it may have actually alienated their children.
Nancy and Ronald Reagan had an enduring and amazing love story. In 1998, Nancy said of their relationship: "Our relationship is very special. We were very much in love and still are. When I say my life began with Ronnie, well, it's true. It did. I can't imagine life without him." Click through the gallery to see more photos of this beautiful couple through their years together and to learn more about their love story. (Getty)