Lyne, when he encountered Mormonism, was a skeptic, having outgrown belief in all of the creeds. It was in 1841 that George J. Adams, a brother-in-law of Lyne's, turned up suddenly in Philadelphia (Lyne's home) where he met the popular actor and told him the story of his conversion to the Mormon faith. Adams had been to Nauvoo, met the prophet and become one of his most enthusiastic disciples. Adams had been an actor, also, of more than mediocre ability, and as a preacher proved to be one of the most brilliant and successful expounders of the new religion. Elder Adams had been sent as a missionary to Philadelphia in the hope that his able exposition of the new evangel would convert that staid city of brotherly love to the new and everlasting covenant. In pursuance of the New Testament injunction, the Mormon missionaries are sent out into their fields of labor without purse or scrip, so Elder Adams, on arriving at his field of labor, lost no time in hunting up his brother-in-law, "Tom" Lyne, to whom he related with dramatic fervor and religious enthusiasm the story of his wonderful conversion, his subsequent visit to Nauvoo, his meeting with the young "Mohammed of the West," for whom he had conceived the greatest admiration, as well as a powerful testimony of the divinity of his mission. Adams was so convincing and made such an impression on Lyne that he at once became greatly interested in the Mormon prophet and his new revelation. This proved to be a great help to Elder Adams, who was entirely without "the sinews of war" with which to start his great campaign. The brothers-in-law put their heads together in council as to how the campaign fund was to be raised, and the result was that they decided to rent a theatre, get a company together, and play "Richard III" for a week. Lyne was a native of Philadelphia and at this time one of its most popular actors. It was here that Adams had met him a few years before and had given him his sister in marriage. The theatrical venture was carried through, Lyne playing Richard and Elder Adams, Richmond. The week's business, after paying all expenses, left a handsome profit. Lyne generously donated his share to the new cause in which he had now grown so deeply interested and Elder Adams procured a suitable hall and began his missionary labors. His eloquent exposition of the new and strange religion won many to the faith; one of the first fruits of his labors being the conversion of Thomas A. Lyne.