Don't know if this helps you now or not, but Glenwood Cemetery is on Roanoke Rd. on the east side of town, next to the Catholic Cemetery (St. Joseph's, i think). I was there about 5 years ago, and found Roanoke Rd. off of US 24 coming from Ft. Wayne.
My grandparents are buried there, as well as her parents and other members of her family.