In the book "Aitkinsville to Zerf", the author Maurice Faust says "The first mail drop for Buckman was established in 1877 with Edward S. Arnold as postmaster. This drop was listed as being in Buckman Township".
The 1892 plat map of Buckman township shows a J. Arnold farm 2 miles south of Buckman, but we don't know for sure if that was the Ed Arnold place.
Mr. Faust goes on to say the next 30 years the postmasters were John P. Sand, John Schmolke, John Sitzman, Frank Kuder, Jr, Joseph Schmolke and Anna Mischke. "In 1910, the mail drop site was closed and the mail was ordered to be sent to Royalton. At this time, RFD was begun in the area, however, only on fair roads in fair weather".
In 1921, Peter Blake became the first postmaster IN Buckman.