North Main-North Gay Streets Historic District
Why it's listed
North Main and North Gay Streets in Mount Vernon, Ohio, form a linear district of 155 contributing buildings, including houses, churches, commercial blocks, and many rear outbuildings now used as garages or storage. Most date from about 1820 to 1925, and large shade trees and brick-paved streets shape the setting. The oldest documented building, at 100 North Main Street, was built in 1823 in the Federal style for H.B. Curtis and later given a mansard roof. The district shows nearly every major residential style of its era, with fifteen Greek Revival examples, twenty-two Italianate ones, Gothic Revival houses from the 1850s, Second Empire homes, and Queen Anne, Craftsman and Colonial Revival buildings. A 1931 Moderne armory is also included. Merchants, a cabinetmaker, a banker, a physician and industrialists built homes here as their businesses prospered, and local architect Daniel Clark designed one of the Greek Revival houses. The area compares closely with Mount Vernon's other historic residential districts.
Significance in brief: The district contains excellent examples of nearly every major residential architectural style from 1820 to 1931, including Greek Revival, Italianate, Gothic Revival, Second Empire and Queen Anne. It also reflects the growth of a neighborhood where local businessmen, professionals and industrialists built fashionable homes as their ventures prospered.
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 90000383, listed March 9, 1990. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | Roughly bounded by Curtis St., N. Gay St., Public Sq., and N. Main St., Mount Vernon |
|---|---|
| County | Knox County |
| Listed | March 9, 1990 |
| Reference number | 90000383 |
| Resource type | District |
| Architect / builder | Daniel Clark (local architect and carpenter, built 107 N. Gay Street); Matthew Thompson (as owner of 108 N. Main Street) |
| Architectural style | Greek Revival, Gothic Revival, Italianate, Second Empire |
| Areas of significance | Community Planning and Development, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Mixed continuing use: homes, churches and commercial buildings. Some historic houses now serve as offices, funeral homes or nursing homes; outbuildings serve as garages or storage. |
| Acreage | 25 |
| Coordinates | 40.39722, -82.48450 (NPS GIS) |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
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 90000383.
- Nomination form (PDF, National Archives) — catalog entry
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.