Here's a little information on Ogborn that I found on the internet. He sounds like an interesting Hoosier.
Mr Argus Ogborn was a Quaker Historian in Richmond, Indiana. The Indiana G.A.R., begun in 1866, lasted until the early 1870's, when it went into a decline until there was but one Post left in the State. This was in the small town of Newtonville in Spencer County. It, too, finally passed from the scene. The Illinois Department held its organization through these crucial years, as did many G.A.R. groups in the eastern states and the mid-west. Argus E. Ogborn, Past Ind. Department Commander, Sons of Union Veterans of the Civil War, Richmond, Indiana