This William Maw and Sarah re probably the same persons ... merged them because Edward Maw (son of W and S Maw) born in Belton lived in 1870 next door to William Paulger, son of Elizabeth Maw who married to John Paulger in Belton.
This Elizabeth was one of 3 children born in Tickhill before the remaining children who are al born in Belton. Elizabeth married in Belton even though she was born in Tickhill ...