Lewis Ankeny McArthur, Oregon Geographic Names (1952)
“ MULTNOMAH, Multnomah County. The community of Multnomah took its name from Multnomah County. The Oregon Electric Railway was built from Portland south to Salem in 1907 and began operation in 1908 and it was the policy of the officials to apply Indian names, wherever possible, to the stations as they were established. For the origin of Multnomah, see under MULTNOMAH COUNTY. The post office at Multnomah was established February 7, 1912, with Nelson Thomas first postmaster. ”
