Sanfilippo was the son of Sam and Rosina Sanfilippo. He served in the U.S. Navy during the Korean War and joined his older brothers in their auto supply business after his discharge. He eventually assumed full ownership of the business, which closed in 2007.
- "Domenic Sanfilippo" obituary (August 10, 2018) The Birmingham News
- Domenic Sanfilippo at Findagrave.com