Project Scroll Research Note 2026-27: "Cassopolis" with an O in print by February 1833: Bishop Chase's appointments, from the St. Joseph's Beacon

The county seat of Cass County, Michigan, was platted in 1831 as "a village to be called Cassapolis," with an A, and its post office kept that spelling until 1870. The earliest printing of the modern spelling cited until now was John T. Blois's Gazetteer of the State of Michigan (1838). The Episcopal Recorder of Philadelphia for 23 February 1833, reprinting from "the St. Joseph's" Beacon, prints Bishop Philander Chase's appointments in south-west Michigan: "On January 27th at White Pigeon, on the 29th at Edwardsburgh, on the 30th at Niles, at Edwardsburgh again on the 1st of February, and at Cassopolis on the 2nd and 3rd." In the same year the federal Official Register listed the post office, with Alexander H. Redfield as postmaster, as "Cassapolis." The village was spelled both ways within two years of its plat. Project Scroll Research Note 2026-27, version 1. The note sets out the record quoted, where it is held, what it changes, its limits, and what was searched before calling it new. Web version: projectscroll.com/discoveries/notes/2026-27/.