ALLEN County is located in the southeastern part of the State, in the second tier of counties west of the Missouri River, and about fifty miles north of Indian Territory.
In extent it is twenty-one miles north and twenty-four miles east and west, containing 504 square miles, or 322,560 acres.

The county is divided into ten townships as follows: Osage, Deer Creek, Geneva, Iola, Elm, Marmaton, Elsinore, Salem, Humboldt, Cottage Grove. _1.

Organized in 1855. County Seat, Iola.
Named in honor of William Allen, of Ohio, who was for many years a member of the United States Senate from that Commonwealth, and also its governor.
He favored the doctrine of popular sovereignty on the opening of the Territory of Kansas to settlement. _2.

1. William G. Cutler's History of the State of Kansas
published in 1883 by A. T. Andreas, Chicago, IL.

2. History of Kansas, Noble Prentis, (Winfield: E.P. Greer. 1899)