Marquart-Mercer Farm
Why it's listed
This farm southwest of Springfield in Green Township, Clark County, centers on a two-story Federal brick house with a one-story extension, plus a log double-pen barn about 200 feet to the northwest. Philip Marquart, who came from Pennsylvania in the early 1800s, bought land in the area and built a log cabin before the brick house. A tax record from 1827 first indicates a farmhouse on the site, and the brickwork supports a date before 1835. The extension followed within roughly a decade. The front wall is laid in Flemish bond, and the house has oval gable windows and original Federal mantels and trim inside. The Marquart family farmed and dealt in livestock, and the property passed to the Mercer family in 1879. Sparrow Road takes its name from a farmer who worked the land in 1854. The farm is valued as a rare early farmstead still in a natural setting, still farmed, with both main buildings little altered.
Significance in brief: The farm is presented as an excellent, little-altered example of an early Clark County farmstead. The Federal house, with its oval gable windows and well-preserved interior trim, is called an unusually fine example of very early Ohio farm architecture. The double-pen log barn is noted as a very early log structure still in active use. The form also traces ownership from the Marquart family to the Mercer family.
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 79001791, listed July 26, 1979. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | SW of Springfield, Springfield |
|---|---|
| County | Clark County |
| Listed | July 26, 1979 |
| Reference number | 79001791 |
| Resource type | Building |
| Period of significance | 1800-1899 |
| Architect / builder | Philip Marquart |
| Architectural style | Federal |
| Areas of significance | Architecture, Agriculture |
| Level of significance | Local |
| Status (as stated in the nomination) | Interior in good condition; farm still used as a farm, with the house and barn little altered. A modern garage and outbuildings are in the farmyard, and the airport lies to the south. |
| Acreage | 2 |
| Coordinates | 39.85599, -83.82951 (NPS GIS) |
What listing means for this property
National Register listing is honorary for a privately owned home: it does not by itself restrict what an owner may do with their own money, and it does not require public access. Restrictions come from local landmark or historic-district ordinances, which are separate (how they differ).
Owner-occupied houses are not eligible for the 20% federal rehabilitation tax credit, which applies to income-producing buildings, but many states offer credits for homeowners. Listing also opens the door to preservation easements and to buying a plaque. Start with what listing means for homeowners, renovating a listed house and selling one.
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 79001791.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q28147968
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.