An MP who shared his name with several other fifteenth-century residents of Worcester, Porter is not automatically identifiable and it is possible that the cursus honorum above conflates him with one or more of these namesakes.
Notwithstanding the problems of identification, it is likely that the MP was the John Porter who witnessed deeds relating to property at Worcester in 1431, 1434, 1441 and 1453,
Apart from the indenture recording his election to Parliament, the only evidence definitely connected with the MP is a mid fifteenth-century manuscript volume of considerable literary significance. It appears that he was the compiler of this volume, in which he is mentioned by name and which suggests that he was better educated than many of his fellow parliamentary burgesses. The term ‘commonplace book’ scarcely does full justice to this collection of 72 paper folios, of which all but folios 46-54 are in one hand – apparently his – for it includes copies of three rare and important texts: first a treatise on heraldry, one of just two known versions of one of the earliest treatises on heraldry in English; secondly, the only medieval manuscript of the ‘Art de Venerie’ by Edward II’s huntsman, William Twiti, the earliest treatise on hunting in English; thirdly, the earlier of two known manuscripts in English relating to the game of chess. The remainder of the manuscript is comprised of more mundane but nevertheless interesting notes and texts. These include menus of a Lenten breakfast provided by Richard Lee* during his term as a sheriff of London (1452-3) and of a feast given by the serjeants-at-law in 1454, as well as various recipes, a table of weights and measures, biblical quotations, a ‘Regimen Sanitatis’, a list of the ten commandments, a treatise on plague and a brief Latin chronicle of English history from 1066 to 1447. It also records that Porter and his fellow MP, Hugh Jolye*, arrived at the Parliament of 1447 on 12 Feb., two days after its opening at Bury St. Edmunds, although without giving a reason for their tardiness. Porter’s name also appears in an aphorism added near the bottom of another folio: ‘Intima per mores quoscumque exteriores. quod Porter’.
