Trimble, George, House
Why it's listed
Built in 1812 by George Trimble on a farm in Silver Spring Township, Cumberland County, this five-bay, double-pile brick house has a stone foundation, a rear kitchen ell and a true Georgian plan with a central passage flanked by four equal rooms, each with a fireplace. Its main block retains plaster walls, pine floors and nearly all of its federal-era interior woodwork. The southeast parlor contains an elaborate corner cupboard rising the full height of the room, with a matching fireplace mantel, and the house has a second corner cupboard in the western parlor. Exterior alterations in the 1940s and 1960s, including a new porch and sunporch, did not affect the interior. The house is important as an example of the masonry farmhouses built by prosperous Cumberland County families in the early nineteenth century, and its woodwork is regarded as among the finest of its period in the county.
Significance in brief: The nomination argues the house is a significant example of the full Georgian-plan masonry farmhouse found among Cumberland County's wealthier agriculturalists in the nineteenth century. Its interior woodwork, including elaborate corner cupboards and fireplace mantels, is described as remarkably intact and among the finest federal-era woodwork in the county.
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 92000945, listed July 24, 1992. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence medium).
Key facts
| Address | 50 Pleasant Grove Rd., Silver Spring Township, Mechanicsburg |
|---|---|
| County | Cumberland County |
| Listed | July 24, 1992 |
| Reference number | 92000945 |
| Resource type | Building |
| Period of significance | 1812 |
| Architectural style | Early Republican/Federal; Georgian plan |
| Criteria |
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| Areas of significance | Architecture |
| Level of significance | Local |
| Acreage | 1.4 |
| Coordinates | 40.26984, -77.04820 (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 92000945.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q5545322
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.