Milton is a former settlement in Brown County, Illinois, United States. The town was laid out August 25, 1836, by Lewis Gay, situated on the E. i of the S. E. of section 31, and the W. i of the S. W. I of section 32,[clarification needed] near the site of the old Johnson mill, on McKee's creek, but it was a failure.[2] Lewis Gay and William C. Ralls were the proprietors of the town, having laid out the town on McKee creek, five miles from the Illinois river.[3] In the prospectus advertising the sale of town lots, the promoters referred to it as located at the head of slack water navigation.[3]