Save for his service as a member of the royal household, very little is known about Spencer. He first joined the Household as a servant to Henry V,
Spencer was among the many servants of Henry VI who were elected to the Parliament of 1453. He had no known connexion with the borough he represented. Indeed, the Crown’s electoral intervention at Bridport is strongly suggested on other occasions too, for Spencer was one of three men from distant Essex returned for the borough in this period. The others were John Torell*, who had sat in the Parliament of 1449 (Nov.), and Spencer’s colleague Thomas Skargill*, a yeoman of the chamber and parker at Havering, who had done so in the earlier Parliament of that year. Spencer and Skargill had been among those enfeoffed of land at Havering in June 1452, in association with the King’s carver Sir William Beauchamp*, but Spencer died before further transactions regarding this property were completed in March 1457.
