Little is known about Thomas’s father, who lived in St. Nicholas’s parish in the Isle of Thanet, although he may have had connexions with the Beaufort affinity in Kent through their lands in the neighbourhood. Two John Forsters, senior and junior, served with the duke of Somerset in Calais in 1452 and these may have been our MP’s father and brother.
Forster was described as ‘of Canterbury, gentleman’, when at an unknown date between 1455 and 1457 he was admitted to the freedom of the city by virtue of his second marriage, to the widowed Alice Bonnington, daughter of John Winter.
The exact value of Forster’s landed holdings, scattered through east Kent, is unknown; nor is the worth of the property he owned in the parishes of St. Mary Bredman and St. Margaret in Canterbury. At least one of his houses in the city was large enough to entertain Sir John Scott†, probably in 1466, when the latter came to Canterbury for the settlement of the dispute with St. Augustine’s abbey.
Not long after Forster’s death, his daughter Alice died childless, whereupon his sister Katherine petitioned the chancellor against his feoffee Carpenter. She claimed that Alice had wished her to inherit the former Colyns and Stace lands, but that Carpenter refused to relinquish them.
