A skinner by trade, Mitchell was sometimes known by his occupational alias, so adding to the problems of trying to identify an already obscure figure. During his first term as bailiff of Oxford, for example, he was referred to as ‘John Skynner’ in an Exchequer memoranda roll but as ‘John Michell’ in one of the surviving municipal records for 1427-8. Likewise, during his second term in the same office, it was as John Skynner that he witnessed a deed subsequently entered on the dorse of the close roll, but as John Michell that he attested the election of Oxford’s MPs to the Parliament of 1433.
As far as is known, Mitchell did not begin his career as a municipal office-holder until 1427, although it was on behalf of his borough that he rode to London earlier that decade. The surviving account of the chamberlains of Oxford for 1423-4 records that he spent ten days in the City negotiating for a charter (possibly that granted to the town on 15 Nov. 1423, itself a renewal and confirmation of Henry IV’s charter of 1401), and a further five days away on another journey, probably again to London. The latter errand was connected with a dispute between the churchwardens of the town’s parish of All Saints and the master of University College over the ownership of the Maidenshead in Turl Street, presumably a matter in which he was acting for the churchwardens. His employment on such tasks suggests a man with some knowledge of the law as well as trade.
