[1] This building is the first federally owned post office in Neillsville.

Before that, postal services were provided from a private location chosen by the postmaster at the time.

[1] In 1937 the Public Works Administration built the current building from a standardized plan, the same used for post offices in Stoughton and Hartford.

[1] The post office features a mural painted during a United States Department of the Treasury program that designated 1% of the building's cost of construction for art work.

[2] In the 1940 mural, artist John Van Koert depicts the 1854 vote in which Clark County's citizens chose O'Neill's Mills (later Neillsville) as the county seat over Weston Rapids, a little mill town three miles up the Black River.