In expressing my appreciation of the assistance which has been rendered me in the collection of materials for the preparation of this paper, I would particularly mention Mr. James A. Holden, of Glens Falls, who has furnished me, from the library of his father, the late Dr. A. W. Holden, with most valuable matter, some of which could have been obtained from no other source. I also duly acknowledge my indebtedness to Hon. Grenville M. Ingalsbe, of Sandy Hill, who interested himself in my search for data, and feel myself under obligations to the _Schuylerville Standard_ and to the _Glen Falls Times_ for gratuitously publishing my request for information. _Communications._ From the letters relating to the subject in hand which I have received, I glean the following. I might say that the discrepancy which appears in the descriptions of Dr. Clark's person may be accounted for by the different ages and conditions of health in which he is best remembered by the several Observers: From Dr. Albert Mott, Cohoes: "The location of the Union Meeting House was at Reynold's Corners, about four or five hundred feet from the corner, directly east. The burying ground was north and across the road from the meeting house." From Rev. Dr. Jos. E. King, Fort Edward: "In 1858 the old church (Union Meeting House) was filled, to enjoy the commemorative exercises of the 50th year since the origin of the temperance cause, and I heard Hon. Judge McKean, of Saratoga, address the congregation. There was singing, prayer, a poem by Lura Boies, &c." Statement of Judge Lyman H. Northrup, of Sandy Hill, w<ho remembers Dr. Clark: "He always carried upon his countenance a mild, genial, pleasant expression; dressed with neatness, and appeared to be a good sort of a fellow, and exhibited not at all that asperity which we associate in our minds with the active reformer." From William Gary, of Gansevoort, who was intimate with Dr. Clark: "He had rather small, black eyes, which would be generally considered rather piercing. His hair was black and very profuse; eye-brows very shaggy. His height I should put at 5 ft. 10 in., and weight about 170 lbs." From B. F. Lapham, of Glens Falls: "I was well acquainted with Dr. B. J. Clark. He lived on the same street we did for many years, and when he died I helped prepare his body for burial. He was rather eccentric in many things and very resolute. There never was a meeting held but he would suggest some resolution, so they nicknamed him 'Resolution Billy.' Dr. Clark's name will be famous through all time as the originator of the first temperance organization that ever existed. He was an ardent and efficient laborer all his life."