After ten or fifteen years of service, when his congregation had increased and lads and lassies were multiplied, he organized in 1840 the Youth's Temperance Society. It was made up of young people. Once a month or every two months, alternating with the Missionary Society, the afternoon Sunday School service took the form of a temperance meeting; at which, besides prayer and singing, addresses were made by speakers, either from the congregation or without. There were also occasionally recitations, but the crowning event of the year, for which preparations were made often weeks in advance, was the anniversary. This was held on the evening of Washington's Birthday, February 22d, either in the church edifice or at Concert Hall on Chestnut Street, which is now occupied by the Public Library. Exquisitely lovely in memory rises the scene, when after duly committing to memory and practicing, cutting down to the right length and repeatedly rehearsing the speeches, the dialogues and the musical parts, the boys and the girls, in a glow of excitement, gathered in the rooms below the stage. The little maidens in their best clothes and most bewitching adornments in hair and dress and slippers, seemed to me most radiantly lovely. The boys who were to be speakers had on their coats a rosette of quilled ribbon, in the center of which was a tinsel star, from which gushed forth a cataract of red, white, and blue satin pendants or streamers. How gay and happy we all were! How heaven-like it all appeared! Except for the thumping of one's heart under his ribs, it seemed positive rapture to hear one's name announced by the superintendent, Aaron H. Burtis--that superb re-incarnation, as we thought, of George Washington. To make one's bow before a thousand human beings, to speak his piece with high pulse and magnetic thrills, were delights that filled a few triumphant moments. Stirring are the memories of the genial pastor, ever ready to cheer the boys, the portly form of Robert Luther, the happy faces of John Yard, Francis Newland, Daniel Steinmetz and Rudolph S. Walton, and the younger but constantly efficient Robert H. Hinckley, Jr. The Youth's Temperance Society flourished until the close of Mr. Chambers' ministry. Although all of the lads trained under John Chambers did not as they grew up, become Prohibitionists, yet a small army of good citizens, earnest in temperance reform, owe their strength of conviction to their noble pastor.