David Thomas Lenox (December 8, 1802 – October 18, 1874) was an American pioneer who settled in the Oregon Country where he organized the first Baptist Church west of the Rocky Mountains.

[4] In 1840, Lenox sold the farm and moved to Todds Creek in Platte County, where he bought timberland for $5 per acre.

[4] After a couple years they decided their land would not be productive enough to sustain the family, and they resolved to immigrate to the Oregon Country.

[3] About 1843 Lenox was working as a contractor in Missouri (now Kansas) near Fort Leavenworth when he heard a speech about Oregon from Peter Hardeman Burnett.

[5] Lenox was already waiting to start for the Willamette Valley, but after the speech he signed up to travel with Burnett to Oregon.

[5][7] Whitman arrived after his winter trip from his mission in the Oregon Country to Washington, D.C., and joined the group after they had started out.

[5] During the trip Lenox and Whitman insisted the wagon train not proceed on Sundays due to their religious beliefs.

[3] On August 29, Whitman left the group after Fort Hall to return to his mission after word had reached him of trouble with the natives, but promised to send back a Cayuse chief to guide them across the Blue Mountains and on to the Columbia.

[5] Whitman arrived at the Snake River and waited for the wagon train to catch up after surmising the crossing was more difficult than anticipated.

[14] In the June 3, 1845, elections for the provisional government, Lenox was a candidate to represent Tuality District in the legislature.

[15] He finished sixth in the voting, with David Hill, Morton M. McCarver, and J. W. Smith elected to the House of Representatives instead of Lenox.

[2] After his death he was buried on the farm, with the location of the gravesite at the Kees (or Blue Mountain) Cemetery later lost, but then rediscovered in 1924.

[7] This group then moved his remains and their plaque in 1960 to the West Union Baptist Church Cemetery where his wife was buried.