Simplify the following text for a Grade 6 native English-speaking person.
Original: He has a thirteen-year-old son named Hooeylewis ( believed by some to be a reference to Huey Lewis ) , twelve-year-old twin boys named Biram and Bilak , and seventeen grandchildren .
Simplified: He has a 13-year-old son named Hooeylewis and 12-year-old twin boys , named Biram and Bilak , as well as 17 grandchildren .