Biographical details for William Diaper are sparse. He was born in Bridgwater, the son of Joseph Diaper, and attended Balliol College, Oxford in 1699 as a poor scholar (pauper puer), and took his BA degree in 1705.
Biographical details about William Diaper are limited. Born in Bridgwater to Joseph Diaper, he pursued studies at Balliol College, Oxford as a poor scholar (pauper puer) in 1699 and obtained his Bachelor of Arts degree in 1705.