Parker, a captain in the Oxfordshire yeomanry, was parachuted into the 1837 county election in order to prevent the unopposed return of a prominent local Catholic. Only son of Colonel Thomas Parker of Eynsham Hall, Parker was heir presumptive (after his father) to the 4th earl of Macclesfield (d. 1842), a former Tory MP for Woodstock and a long-serving member of the royal household, whose Oxfordshire estates included Shirburn Castle.
There may have been more to Parker’s declaration in his address that he had been ‘induced to offer’, since he clearly found Westminster uncongenial and later explained that in accepting the role of ‘public man’, ‘my private inclinations did not correspond to the wishes of my friends’.
At the 1841 general election Parker announced his retirement, to the evident relief both of himself and the Oxfordshire Conservative Association, whose chairman, responding to criticism of his selection, insisted that ‘although the candidate was young, I felt assured that he would well discharge of the duty of a representative’.
