About 1862 they concluded to extend the new road to the old turnpike on top of the mountain. While constructing that part of the road, lead was discovered. As a result of this discovery, many mines were prospected on the Shawangunk Mountain and were operated more or less from 1863 to 1870. Among these was the mine of the Guymard Lead & Zinc Co., from which several carloads of lead were shipped weekly. After the close of the Civil War the price of lead declined, and considering the crude mining methods and the cost involved, eventually the mines were abandoned. Of the Gumaer brothers, Peter and Jackson are now living at Guymard. Chauncey Gumaer, son of Peter, having had nearly twenty-five years' mining experience in Colorado and the West, has returned and is now working the old mine at Guymard. With the improved methods of mining, he believes his new venture will prove successful. An incident of considerable local historical interest occurred here in the spring of 1863. The mine at Guymard was being worked by its owners, when one day one George H. Servoss, an Englishman, arrived and claimed that he owned the mine and all the mineral rights in this section through a grant by Queen Anne of England. He erected a small building on the grounds and his miners began operations. The rightful owners were wild with excitement and the news was soon communicated to others interested in mining in this section at that time. A day was appointed, when between 100 and 200 men assembled and tumbled Servoss's building over into the gully below the railroad track and drove him and his miners from the mine. This was probably the last attempt of a subject of Great Britain to claim territory or granted rights in the United States which had been so definitely decided nearly a hundred years before by the ancestors of some who took part in driving this Englishman from his false claim. A singular incident in connection was this: Ambrose W. Green, who kept a hotel at Otisville, and was much interested in mining, was one of the men who assembled and helped to drive Servoss from his claim at Guymard. Servoss came to Otisville that night and with some of his miners stopped at Mr. Green's hotel. Being convinced that Yankee blood still predominated in this section, Servoss gave up his claim. While stopping with Mr. Green he began prospecting and on June 13, 1863, leased the mineral right of Thomas Hawk of his farm situated less than a mile above Otisville. Ambrose W. Green witnessed the document and Servoss formed what was known as the Otisville Copper Mining Company, which he worked for some time. Servoss died in New York City on December 10, 1907.