From Cinema Treasures
The Hillsdale Drive-In opened on June 27, 1948 with a car capacity of 400, single screen ozoner. Admission at the opening was fifty cents for adults. No closing date given but since demolished and a tractor supply store is located where the theatre once stood. The drive-in was operated by Wisper & Westman.
Water Winter Wonderland:
Based on articles I found, the theater closed for a time in the 80's but was re-opened by Chad Baker in 1985. The re-opening didn't pan out and the theater was closed and demolished by 1987 . It was a Tractor Supply Store when I visited the site back in the early 2000's. Based on the ads it seemed to be most active in the 1960's.