The Historyof Essex county by Smith, published in 1885, has a listing of the various units from Essex County categorized by Town. Some officers are listed for each unit. I found the book to be available on interlibrary loan. Title : History of Essex county; with illustrations and biographical sketches of some of its prominent men and pioneers; edited by H. P. Smith. Author : Smith, H. P. 1839-1925. Publisher : Syracuse, N.Y., D. Mason & co., 1885. Subject Heading(s) : Essex County (N.Y.) History. Essex County (N.Y.) Biography. Description : xv, [17]-754 p. illus., plates, ports., plans. 26 cm.