As soon as Thomas Guy prospered, he gave to various causes. He gave five pounds to help rebuild the schoolhouse at Tamworth, where he had been a student a few years before; and when a little over thirty years of age, in 1678, he bought some land in Tamworth, and erected an almshouse for seven poor women. A good-sized room was used for their library. The whole cost was £200, a worthy beginning for a young man. A little later Mr. Guy gave ten pounds yearly to a "Spinning School," where the children of the poor were taught how to work, probably some kind of industrial training. Also ten pounds yearly to a Dissenting minister, and the same amount to one of the Established Church. When Mr. Guy was a little over forty, he gave another £200 for almshouses for poor men at Tamworth; and the town called him, "Our incomparable benefactor." When Mr. Guy was forty-five years of age, in 1690, he attempted to enter Parliament from Tamworth, but was defeated. This was the second Parliament under William and Mary. In 1694 he was elected sheriff of London, but refused to serve, perhaps on account of the expense, as he disliked display, and paid the penalty of refusing, £400. In the third Parliament, 1695, Mr. Guy tried again, and succeeded. He was re-elected after an exciting contest in 1698, and again in 1701 and 1702, and in two Parliaments under Queen Anne. While in Parliament he built a town hall for the people of Tamworth. In 1708, after thirteen years of service, Mr. Guy was rejected. It is said that he promised the people of Tamworth, so much did he enjoy Parliamentary life, that if they would elect him again he would leave his whole fortune to the town, so they should never have a pauper; but for once they forgot their "incomparable benefactor," and Thomas Guy in turn forgot them. "The cause of Guy's rejection," says the history of Tamworth, "is said to have been his neglect of the gastronomic propensities of his worthy, patriotic, and enlightened constituents, by whom the virtues of fasting appear to have been entirely forgotten. In the anger of the moment he threatened to pull down the town hall which he had built, and to abolish the almshouses. The burgesses, repenting of their rash act, sent a deputation to wait upon him with the offer of re-election in the ensuing Parliament, 1810; but he rejected all conciliation. He always considered that he had been treated with great ingratitude, and he deprived the inhabitants of Tamworth of the advantage of his almshouses." His will provided that persons from certain towns might find a home in his almshouses, his own relatives to be preferred, should any offer themselves; but Tamworth was left out of the list of towns.