Here's a list of fellow WikiTreers researching Watson:
https://www.wikitree.com/genealogists/WATSON
Actually, there is a Watson name study:
https://www.wikitree.com/wiki/Space:Watson_Name_Study
So glad you found that, Lucy.
I ran a search of wikitree for the words watson one name study and didn't find it... I was surprised, because it's a fairly common name.