I don't think so, Meriwether was her middle name. Per my genealogy she was the daughter of General John Bowyer and Elizabeth Hubard. Meriwether possibly being a derivative of Mary. The name Mary was a common name for the Bowyer's possibly Mary wether? I've found that she possibly had a mental breakdown so maybe it was a play on words back then. Maybe she was moody like the weather?
She was married to a Brown, Gardner and then the Famous General R.E. Colston... Unable to find out any other info except her and the General had two daughters and she had a son with Mr. Brown...named Horace... That's what I've got hope it helps.