By the way, the Marvel SW comic had Vader torturing rebel officers for the name of the pilot who’d destroyed the Death Star. Despite ‘Skywalker’ being the SW equivalent of ‘Smith’ (according to GL) I maintain that once he’d heard that name he’d be pretty sure whose son that kid was!
If Skywalker is such a common surname in the Galaxy I think it’s weird that the only Skywalkers we find are the Skywalker family from the main saga. I would say the most common surname in the Galaxy is Antilles, as a senator Bail Antilles is mentioned in TPM, there’s captain Antilles of the Tantive IV and of course Wedge Antilles.
Now I want to see a character named Skywalker that has no relation to the famous family and isn’t even Force-sensitive.