Buller was the son of Sir Richard Buller, of Shillingham, Cornwall. The Buller family was originally from Somerset and acquired Shillingham in around 1555.Basil Duke Henning The House of Commons, 1660–1690 He entered Sidney Sussex College, Cambridge in 1620 and matriculated at the Inner Temple in 1622. In 1624, Buller was elected Member of Parliament for Saltash and was re-elected in 1625.
