Reuben P. Willard succeeded William Stewart as postmaster at Summerville.

The evidence

• “The first post ofiice established in the town of Clinton was opened at Summerville, on August 12, 1843, William Stewart being at the head of affairs. He remained in office until January 11, 1850, when he was succeeded by Reuben P. Willard, he being swallowed up on March 6, 1857, by a Governmental decision to close up the office and blend its affairs with that of Clinton, which went into force on that day.”

  1879-history-of-rock-county/16-rock-county-ch10-villages.md, PDF p. 652 / book p. 656

  Butterfield, C. W., et al. The History of Rock County, Wisconsin: its early settlement, growth, development, resources, etc. Chicago: Western Historical Company, 1879. Cornell University Library via the Internet Archive, archive.org/details/cu31924028871585.

  Grade A: Found on a page of one of our sources