Hayner, Mary Jane, House
Why it's listed
Built in 1914 on West Main Street in Troy, Ohio, this mansion was commissioned by Mary Jane Hayner after the death of her husband William, a wealthy distiller who left an estate of three million dollars. The Allyn Company of Cincinnati constructed it, using masons and glaziers brought from Europe. The two-and-one-half-story house wraps around a formal garden court and combines native limestone, an arcaded cloister porch, half-timbered walls, dark oak mullion windows with tracery, and a tile roof. A carriage house and trellised garden house complete the grounds. Inside, pilaster-lined halls meet at columned peristyles, and main rooms have coffered ceilings and marble mantels. Mrs. Hayner left the property to the Board of Education for educational purposes, and it became the Troy public library and historical society archives. When the nomination was written, a new library was being built, funds were short, and the building's future was uncertain, though local attachment to continued public use was strong.
Significance in brief: The nomination presents the house as an irreplaceable example of opulent, high-quality architecture, built with craftsmen imported from Europe. It is also tied to education, since Mary Jane Hayner willed it to the Board of Education for educational purposes, and it housed the public library and historical society archives. The form notes it is valued locally and considered threatened.
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 76001494, listed January 30, 1976. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 301 W. Main St., Troy |
|---|---|
| County | Miami County |
| Listed | January 30, 1976 |
| Reference number | 76001494 |
| Resource type | Building |
| Period of significance | 1914 |
| Architect / builder | Allyn Company of Cincinnati |
| Architectural style | Eclectic; variously called Tudor, Norman Romanesque Revival, or Spanish Colonial Revival and Prairie Style |
| Areas of significance | Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Listed as in excellent condition and occupied; used as the public library and historical society archives, with a new library under construction and the house's future use uncertain and considered threatened. |
| Acreage | 0.9 |
| Coordinates | 40.04080, -84.20601 (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 76001494.
- Nomination form (PDF, National Archives) — catalog entry
- Wikidata Q138589592
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.