Series III. Timberland Records contains land ownership records, maps and plans, tax records, inter-office memos, land agent O. S. Head’s papers, and other topics. This series contains six subseries. Subseries A. Conveyances, Deeds and Titles contains various land ownership documents, including land conveyances, records of land transfers, deeds, and titles. Also included in this subseries are land treaties, which were for lots to land formerly given out by the British Crown, that were later granted to Americans following the Webster-Ashburton Treaty of 1842 (University of Maine at Fort Kent). There are a number of titles and abstracts of titles in this subseries; most of them were copied by hand from their original source, and there is no date as to when they were copied. Subseries B. Maps and Plans contains maps, plans, and sketches. Some of these are of Pingree’s land or interests; others are more general. Included in this subseries are surveys. Subseries C. Taxes and Valuations contains tax records and land valuations. Included in this subseries are general forest industries questionnaires sent out by the Bureau of Internal Revenue’s Natural Resources Subdivisions’ Timber Section. This questionnaire was completed by David Pingree and his siblings. In some cases, only part of the questionnaire is present. These questionnaires list which lands were owned, divisions of the land, the type of lumber, depletions, profits, and timber cutting records. Subseries D. Inter-Office Memos contain correspondence, notes, plans, and proposals between Pingree, his agents, and other interested parties. These are arranged by topic. Subseries E. O. S. Head Papers contains correspondence, accounts, deeds, inventories, and sketches of one of Pingree’s land agents, O. S. Head. Subseries F. Other contains records of depletions, stumpage rates, and scalers’ returns. Also included in this subseries are reports on losses from Spruce Bud Worm damage, and reports from the surveyor of logs.