US War Department - War of the Rebellion (Series I, Volume L, part II, pgs. 832 - 1,006).

Abstract

"In reply to your requisition of the 10th instant, calling for forty men to serve a limited time, I have to request that you will muster into the service of the United States Nathan Olney, as a second lieutenant, who will engage in the recruiting service under said requisition at The Dalles."