Simplify the following text for a Grade 8 native English-speaking person.
Original: According to brother Alvin Wistert , their father `` was born Casmir Vistertus and he Anglicized it when he came to America to Wistert . ''
Simplified: Brother Alvin Wistert said that their father , `` was born Casmir Vistertus and he Anglicized it when he came to America to Wistert . ''