Tyler’s origins are obscure, but he was established in Southwark by February 1405, and perhaps even as early as 1398 (when his address was given more generally as the county of Surrey. No certain evidence of his profession or trade has come to light, and he may simply have lived off the proceeds of his property, but the frequency with which he was employed as a feoffee, mainpernor or witness to property deeds may suggest that he possessed some knowledge of the law. He was active in this capacity by the final years of Richard II, initially in concert with a putative kinsman, Alan Tyler.
Tyler was thus well qualified to represent his neighbours in Parliament, although during the autumn of 1422 he combined his duties in the Lower House with the pursuit of his private affairs in the Westminster law courts.
While Tyler, as far as it is possible to tell, played little part in public life, beyond his two documented spells in the Commons, he evidently enjoyed the confidence of his fellow townsmen. Among those who called upon his services until the early 1440s were middling Southwark men like Peter Swyft (himself a feoffee of Tyler’s property) and Thomas Palmer,
While Tyler does not appear to have been a quarrelsome man, occasional conflicts with his neighbours were perhaps unavoidable. Thus, in the spring of 1418 he quarreled with Agnes Norrys, a Southwark gentlewoman, over an unspecified trespass; in the autumn of 1423 he accused the Colnbrook gentleman Richard Bagot of an assault and the theft of goods worth £26; while four years later the target of his ire was the London barber Thomas Godewyn, whom he charged with an infringement of his Southwark property.
Tyler was still alive in February 1442, when he oversaw arrangements for the settlement of a life interest in his Southwark property on his second wife, Joan, but he died before the autumn of 1450, when his last living feoffee quitclaimed the property to Joan, who survived him.
