Complex sentence: By 1873, Tribal members were selling lumber to Fort Klamath and many other private parties, and by 1896 the sale to parties outside of the reservation was estimated at a quarter of a million board feet.
Split into simpler sentences: By 1873, Tribal members were selling lumber to Fort Klamath and many private parties. By 1896 timber sales outside the reservation were estimated at a quarter of a million board feet.