Joe Scarborough paternal grandmother remarried hence the name change to Scarborough .. allegedly

“Joe is the son of Mary Joanna (Clark) and George Francis Scarborough. He is married to journalist and television personality Mika Brzezinski. He has two children with his former wife, Melanie Hinton, and two children with his former wife, political aide Susan Waren.

Scarborough is the surname of Joe’s step-grandfather, Charles N. Scarborough.”

https://ethnicelebs.com/joe-scarborough