This is one of three caches for Chip n Dale, located in Brookfield, LaClede, and Wheeling. Chipmunks, Chip n Dale, were cartoon characters, created in 1943, by Walt Disney Productions, named after a famed 18th century cabinet maker, Thomas Chippendale. (per Wikipedia).
Brookfield's notable people were : A gospel singer and composer, Doris Akers, who lived in Brookfield until the age of five. Jeff Roe, a Republican political consultant, who lived in Brookfield, until he joined the Army at age sixteen. And the punk rock band All, lived in Brookfield from 1990 to 1994, when they released their albums Percolater (1992) and Breaking Things (1993).
Brookfield is also home of the Great Pershing Balloon Derby, held every labor day weekend.
You are looking for a pill bottle, which can hold small swag. You will need to bring a pen. Please make note of how you find it, so you can replace the same way, so it won't get absorbed by its resting spot. Please be respectful of nearby residents. Some stealth is required. There is a drive to pull into, to get you off the main road. Happy caching.
Congratulations Seifertgal, for being the First to Find!