"Son" in a name?

Question:

"Son" in a name?

It appears that many names have the word "son" in them. I'm guessing that Robertson means "Robert's son." Is this true? And does Van der Bilt mean "Bilt's son" and McIntire "Intire's son"?

Best Answer - Chosen by Asker: The "son" part is true. "Van der", along with "de la" and other prefixes, means "of the".