Hedges-Hunter-Keller-Bacon Gristmill
Also known as: Pioneer Mill

Why it's listed
Founded in 1822 by Josiah Hedges, this grist mill beside the Sandusky River was the first major industry in Tiffin. It began grinding in 1824, and farmers and Native Americans from nearby reservations gathered there to exchange news while waiting for their grain. A fire destroyed the frame mill in 1874, and a brick building rose on the old foundation in 1875 under millwright Gustave Mathes. Ownership passed through the Hunter, Keller, Houser, Graves and Bacon families. Millstones gave way to a roller system in 1900, and a second fire in 1937 reduced the mill to two stories. Grinding ended in 1950, after which the building served as a machine shop, carpenter shop, tin shop and storage. In 1974 it became a restaurant, and gear shafts from the original mill decorate the interior. Turbines in the basement still draw power from the millrace. It is listed as the earliest of Tiffin's industrial buildings and as a successful adaptive re-use.
Significance in brief: It was the first major industry in Tiffin and is the earliest of the city's surviving industrial buildings, representing Tiffin's early role as an agricultural center. The mill was also a social gathering place for farmers and for Native Americans from nearby reservations. Its 1974 conversion to a restaurant is cited as one of the city's most successful adaptive re-use projects.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 80003220, listed January 7, 1980. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 255 Riverside Dr., Tiffin |
|---|---|
| County | Seneca County |
| Listed | January 7, 1980 |
| Reference number | 80003220 |
| Resource type | Building |
| Period of significance | 1800-1899, 1900- |
| Architect / builder | Josiah Hedges (founder); millwright Gustave Mathes (1875 rebuilding) |
| Areas of significance | Industry, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | In use as the Pioneer Mill Restaurant since 1974, with a gift shop, and still generating some power from the millrace and turbines. Condition is marked excellent, good and fair, and altered. |
| Acreage | 2.4 |
| Coordinates | 41.12369, -83.17040 (NPS GIS) |
What listing means for this property
National Register listing is honorary: it recognises significance and does not restrict what a private owner may do without federal money or permits. It unlocks the 20% federal rehabilitation tax credit for income-producing buildings, state credits in many states, and Section 106 review when federal agencies are involved. See what listing means in practice.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 80003220.
- Nomination form (PDF, National Archives) — catalog entry
- Wikidata Q138673411
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.