In this capacity he voted in favour of the six articles for reforming rites and ceremonies, and signed the petition of the lower house for improved discipline.
Parker also appealed to Lord-chancellor Nicholas Bacon, as did the Duke of Norfolk, with the result that, after some delay, Walker was installed a canon of Norwich on 20 December 1569.
[3] Bishop Aylmer also employed him to collect materials for a work in refutation of Campion's Decem Rationes, and in 1582 appointed him to confer with captured Catholic priests.
He preached at Aylmer's visitation on 21 June 1583, but resigned the archdeaconry about August 1585, and died before 12 December 1588, on which date the prebend in St. Paul's was declared vacant by his death.
[2] Walker wrote a dedicatory epistle to Certaine Godlie Homilies or Sermons, translated by Robert Norton from Rodolph Gualter, London, 1573.