Simplify the following text for a Grade 4 native English-speaking person.
Original: He is the grandson of Hall-of-Famer Bryan Hextall , the son of former NHL player Bryan Hextall Jr. and nephew of former NHL player Dennis Hextall .
Simplified: He is the grandson of Hockey Hall of Famer Bryan Hextall , the son of Bryan Hextall Jr. and nephew of Dennis Hextall .