Simplify the following text for a Grade 7 native English-speaking person.
Original: After his death on May 5 , 1885 , the family moved across the country to Lawrence , Massachusetts , under the patronage of ( Robert 's grandfather ) William Frost , Sr. , who was an overseer at a New England mill .
Simplified: After his death on May 5 , 1885 the family moved across the country to Lawrence , Massachusetts .