Yes, “Mary Stuart” is a southern double name. Like Mary Ann, Mary Beth, Mary Kay. Yes, Stuart sounds like a last name so it’s not unusual for someone to think she has kept her maiden name and assume her last name is Stuart-Freydberg, but it’s not. How confusing! So, a hyphen is often added just so you know which way the Stuart swings. To further complicate the matter she married a man with the last name Freydberg. Yes, she’s always spelling and pronouncing that one. Fortunately there are few Mary Stuarts so everyone will know who you are talking about.
Just to add to the story, she and her husband bought some land in North Salem, New York and built a country home. It was called Merry Meadow (it had to have a double name). While the house was under construction, it came to pass that the small country town decided that in respect of fire code regulations each property needed a street number. Unfortunately, Mary Stuart’s house wasn’t finished, so when the numbers were assigned, her house was forgotten. Mary-Stuart’s property was the first on the street (and before their neighbor who had been assigned “1”), so her address was back-filled to 1-A. Great. A hyphenated alphanumeric identifier.
Mary-Stuart moved. Away from the double name state New York and two word town North Salem to the often mispronounced Greenwich (not Green witch, Grenitch) And of course, Mary-Stuart bought a home on Zaccheus Mead Lane. No. Yes. Double name and spelling requirements ensued. Yes, it’s too funny. And there’s more. But now you remember the double name Mary Stuart!