The following data is extracted from Alstead, Cheshire County, New Hampshire History.
Sylvester Partridge came to Alstead, from Londonderry, Mass., in 1783, locating in the northern part of the town. He was then about twenty-one years of age, and soon after married, though his wife lived but a short time. He then married Mrs. Rachel Fay, who bore him three children. By his third wife he had four children. His only son, by his second wife; Capt Theron, was the father of Alfred W. and James S. Partridge, who now reside here. Two other grandsons of Sylvester, Alva W. and Edward M. Smith, also reside here, and also a granddaughter, Mrs. Melissa Joslin. Alva W. occupies the old homestead. Edward M. is an attorney, located at Alstead village. During the spotted fever epidemic of 1812-14, four of Sylvester's children died and were buried on the same day. Theron Partridge died February 6, 1858, aged sixty-nine years.
Source: Alstead, Cheshire County, New Hampshire History