Walton and Willett Stone Store
Also known as: Cahill's Fish Market
Why it's listed
Stepped gables and ivy-covered limestone walls make this four-story building a recognizable feature of Oswego Harbor. Built in 1828 on the west bank of the Oswego River, it was designed as two attached stores, each three bays wide with its own entrance. Jonathan Walton bought the lot in 1827, and the merchants Walton and Willett used the south half as an office while a ship chandlery rented the north half. Later occupants included sailmakers, a newspaper, a customs collector, the Ontario Steamboat Company and the Northern Transportation Company. A railroad spur laid along Water Street in the 1860s raised the street and buried the first story on the west side. After 1885 it served as a warehouse for a neighboring sash and blind factory, and it stood largely empty in the early twentieth century. A fish market has operated there since 1945. Most nearby riverfront buildings have been demolished, leaving this store as a rare link to the harbor's commercial past.
Significance in brief: The nomination calls the building a landmark of Oswego Harbor and an architecturally distinctive limestone store that has lived through many phases of the city's commercial history. Built in 1828, the year after the Oswego and Syracuse Canal connected Lake Ontario to the Erie Canal, it served ship chandlers, shipping lines and a warehouse operation. It is one of the few surviving riverfront structures and a functioning enterprise tied to the historic harbor.
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 76001263, listed May 24, 1976. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | 1 Seneca St., Oswego |
|---|---|
| County | Oswego County |
| Listed | May 24, 1976 |
| Reference number | 76001263 |
| Resource type | Building |
| Period of significance | 1828 |
| Architect / builder | Builder not recorded; the form suggests it may have been J.C. Ives, a local mason |
| Areas of significance | Commerce, Transportation |
| Level of significance | Local |
| Status (as stated in the nomination) | Occupied and in use as a fish market, with upper floors used for storage and net repair; condition listed as good to fair. |
| Acreage | 1 |
| Coordinates | 43.45967, -76.51163 (NPS GIS) |
What listing means for this property
For an income-producing building, listing (individually or as a contributing building in a district) is the gateway to the 20% federal rehabilitation tax credit on qualified rehabilitation costs, often stackable with state credits. Work claiming the credit must follow the Secretary of the Interior's Standards and be approved in advance.
Listing does not restrict a private owner acting without federal money or permits; where federal funding or licensing is involved, Section 106 review applies.
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 76001263.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7966796
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.