Seymour is a city in Wayne County, Iowa, United States.

[4] In 1908, the largest coal mine in Appanoose-Wayne Coalfield was Numa Block number 2, known as "Big Jim."

"Big Jim" was located just 1 mile (1.6 km) east of the Chicago, Milwaukee and St. Paul Railway Depot, and was able to produce 100,000 tons of coal per year at full capacity.

The Mystic coal seam was just over 2 feet (0.61 m) thick here, reached by a 202-foot-long (62 m) shaft.

[5] In 1884, Local Assembly 3143 of the Knights of Labor, based in Seymour, had 40 members.

[6] In 1912, United Mine Workers Local 206 in Seymour had 299 members, approximately 13% of the entire population.

[7] On March 6, 2017, an EF-2 tornado (confirmed by National Weather Service WFO, Des Moines, IA damage survey) hit Seymour at approximately 8:00 pm CST, damaging homes and the high school.

[8] According to the United States Census Bureau, the city has a total area of 2.35 square miles (6.09 km2), all land.

This line passed on the southwest corner of the town square with the depot in this location.

It used to be part of the Golden State Route which was a luxury passenger train operated by the Rock Island and the Southern Pacific.

[11] The two railroad lines crossed at the western edge of Seymour and was protected by an interlocking tower until the Rock Island was abandoned.