This park is Americans with Disabilities Act (ADA) accessible with grills, basketball court, picnic area with two shelters, grill, play equipment, concession restrooms and a sports field.
- Drinking Water
- Modular Play Structure and Swings
- Open Green Space
- Softball Diamond
Research was completed by Cheryl Michaels and Janet Ross in 2009.
Harmon Park is located at 925 Wapakoneta Avenue. The park is named in honor of William E Harmon. Mr. Harmon agreed to donate $1,000 to the Sidney Playground Fund provided that $9,000 was secured locally which it was. Mr. Harmon, who lived in New York, visited the playground in 1915 and a parade was held in his honor.