You might not have heard of Button Gwinnett before, but he was one of the 56 people who signed the Declaration of Independence of the United States.
Gwinnett was of English origin. He was born in 1735 in the parish of Down Hatherley in England, to Welsh parents. As his Wikipedia entry says, after attending The King's School in Gloucester he started his career as a merchant in England. He then moved to Wolverhampton in 1755 and married a local, Ann Bourne, in 1757 at St. Peter's Church at the age of 22. In 1762 the couple left Wolverhampton and moved to America, where Gwinnett became a political leader.
Well, now his signature has been found hiding in St. Peter's Church in Wolverhampton, where he married his wife. Gwinnett gave the city his precious autograph when he signed the parish register at this church in 1757 when he married local girl Ann Bourne two years after arriving from his native Gloucester.
And this is the valuable document: