According to written history material in my aunt's possession, our "direct" European ancestor with the name Williams was: "David
Williams, born in
Wales, 1755, married Margaret
Lyons, born in Ireland. He came to
America prior to the American Revolution. He was soldier during the Revolutionary War, serving under Geo. Washington. Margaret did Geo. Washington's laundry the winter the American
Army lay at Valley Forge. They had six children grown to man and womanhood. etc., etc., etc.
There is no more explicit information to pin down the location in
Wales.
I don't know how far back your Margaret
Lyons goes--do these dates match in any way? If so, you have a bunch of relatives in
America