William was Born in Norwich, he gave Museum to Free Academy in memory of his father, nephew of Samuel Slater ( Slater Brothers)
Slater, the son of John Slater (Samuel Slater's brother and partner), was born in Slatersville,
Rhode Island (now a village within North Smithfield) in 1815 where his family was active in Slatersville
Congregational Church and owned the local textile mills and village.