City of Wilmington issued the following announcement on Oct. 24.
Midwest Classics on 66 are pleased to announce we have Butch Patrick (Eddie Munster) appearing with the Coffin Car and Munster Family Coach on the 28th October from 12 till 5pm.
Food, drinks and entertainment will be available on the day.
So come on down for Butch's only Chicagoland appearance.
Original source can be found here.
Source: City of Wilmington