Career
He was a strong republican and supporter of the Parliamentary cause in the English Civil War. He was a strong supporter of parliament and the Commonwealth. In the same year he was Master of the Mercer"s Company.
He was acting president of the Council of State from 4 October 1653 to 3 November 1653.
He was by 1659 chairman of the London Committee for Compounding. On 15 February 1659, he presented a petition to the House of Commons on behalf of the Commonwealth.
In 1661 Moyer was arrested and charged with treason alongside James Harrington and Praise-God Barebone. Moyer was the father of Samuel Moyer who was also a merchant and was created a baronet in 1701 (see Moyer Baronets).