Sebastopol House Historic Site
historic site in Seguin, Guadalupe County, Texas
Sebastopol House Historic Site is an antebellum Greek Revival house built of concrete, located in Seguin, Texas, United States. Joshua W. Young built it between 1854 and 1856 for his sister, Catherine LeGette. Today Sebastopol is one of some 20 surviving buildings that give Seguin the largest concentration of early 19th-century structures in the U.S.
As a result of its unusual concrete construction, Sebastopol House was included in the Historic American Buildings Survey (H.A.B.S.) in 1936, made a Registered Texas Historical Landmark in 1964, and then listed on the National Register of Historic Places on August 25, 1970. It is a prime example of the limecrete structures of Seguin. The house is constructed entirely of unreinforced cast-in-place concrete and it is one of the oldest and largest structures in the state using this building method.
This process was developed and patented by doctor and chemist John Park, who had moved to Seguin in 1846. But he soon had imitators and competitors, contractors like Joshua Young. Often slaves did the hard physical work, using boards to build forms, kept at the right width (12 to 18 inches) by screws and oak spacers when the limecrete mixture was poured into the forms, and allowed to harden. Then the forms were raised another foot or so and the process repeated.
A large part of the "Park's concrete" mix was caliche, a thick deposit of gravelly clay that underlies Seguin.
This brief starts where responsible research should: with the source description of “Sebastopol House Historic Site” as historic site in Seguin, Guadalupe County, Texas. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as historic site in Seguin, Guadalupe County, Texas. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 15, 2026. The linked authority identifier is Q7442726. VIAF identifies the subject as 134056717. Authority coordinates are 29.570, -97.973. 2 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1854, 1856, 1936 and 1964.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Sebastopol House Historic Site”, its source revision and the description used here.
- Expand the search: follow Sebastopol House Historic Site primary sources, Sebastopol House Historic Site archive and Sebastopol research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Sebastopol House Historic Site”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Sebastopol House Historic Site” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.