| c1803 | Jacob J. Hershey |
| 1814 | Abraham Hershey |
| 1830 | Benjamin J. Hershey |
| 1860 | Jacob R. Hershey |
| c1864 | Ben Hershey |
| 1879 | Jacob R. Hershey |
| 1919 | Davis J. Hershey |
| 1930 | Operations Closed |
| 1934 | Jacob D. Hershey |
| 1947 | Catherine Hershey Pickle |
| 1962 | Richard C. Eberly |
| 1965 | Darryl and Mary Lou Sensenig |
| 2020 | Mary Lou Sensenig |
The mill had what was claimed to be the largest internal overshot wheel in the nation, measuring 20 feet in diameter and 3 and a half feet wide. It had 96 buckets around its perimeter.
The mill is located at 363 Hershey Mill Road, Mountville, PA.
| Built | c1814 |
| Structure | 3.5 Story Stone, 40×40 |
| Water Source | W. Branch of the Little Conestoga |
| Township | Manor |
| Type | Flour/Grist/Saw/Cider |
| Headrace | 500 feet |
| Tailrace | 500 feet |
| Dam Height | 12 feet |
| Power | 1 Overshot |
| Capacity | 35 bbl / day |
