Melissa Sue Anderson & Michael Sloan – 30 Years Together
She became recognized by portraying Mary Ingalls in the infamous Little House on the Prairie series when she was just a teenager. Melissa Sue Anderson eventually grew out of that part and moved on to play in films like Happy Birthday to Me and The Equalizer series. It’s safe to say that was when she met her now-husband Michael Sloan, as he was the writer for the latter show. Michael has quite a stunning career as a producer and writer. They tied the knot in 1990 and have since had two children—a daughter, and a son.