|The Holland-Thompson Property is locally significant under Criterion C for architecture as an excellent example of a Queen Anne style main house and Late Victorian carriage house. The town of Carbondale and its surroundings have only a handful of Queen Anne style buildings and the main house is the only known Queen Anne style ranch house outside of the original town site. It is the only known intact Late Victorian style carriage house outside the original Town site. The circa-1886 brick house has the complex geometry, hipped roof with lower cross gables, asymmetrical fayade, wraparound porch, dormers, turned spindles, bargeboard, and fields of decorative shingles that characterize the Queen Anne style. The house was built over several years and expanded and modified to accommodate an extended family by 1910 recognizing the evolving fashion of the time and the taste of the family and to reflect the family's successful ranching operation. Character-defining features of the Late Victorian style found on the carriage house include a brick exterior, segmental arch window and door openings, half-hexagon roof dormers, and decorative wood shingles. The property remained in the same family since its construction and as a result the main house interior is intact with wallpapers, furnishings, decorative items, personal items, clothing and linens that date from the 1880s to the 1950s. The Holland-Thompson Property house retains as high level of architectural integrity. Additionally, the property is locally significant under Criterion D in the area non-aboriginal historic archaeology for its potential to yield information important to history due to buried deposits. A privy existed approximately 20' south of the house. While the building no longer exists, the privy pit does, it is now covered and lawn grows over it; however, a depression exists at site of the privy pit, which provides a high likelihood of obscured and buried artifacts.