Born in London, William Carter entered the printing business at an early age. For many years he served as apprentice to well-known Catholic printers, one of whom served a prison sentence for persisting in the Catholic faith. William himself served time in prison following his arrest for "printing lewd [i.e., Catholic] pamphlets" as well as possessing books upholding Catholicism.
But even more, he offended public officials by publishing works that aimed to keep Catholics firm in their faith. Officials who searched his house found various vestments and suspect books, and even managed to extract information from William's distraught wife. Over the next 18 months William remained in prison, suffering torture and learning of his wife's death.
He was eventually charged with printing and publishing the Treatise of Schisme, which allegedly incited violence by Catholics and which was said to have been written by a traitor and addressed to traitors.
