Thomas Tabb Giles, the son of Governor Giles, never left Virginia, was never a farmer in Monroe County, TN and never married. He was a lawyer and an novice architect who designed several houses in Virginia. I am not a descendant of the governor either, and I can't understand why people invent family trees that don't exist. The answer is, No. Lt. James Madison Giles was not a son of Thomas Tabb Giles. Everything I have said here is verifiable. Just contact the Library of Virginia or any reputable agency and they will confirm it.