American Lighthouses: We have consulted on the restoration of more than 15 lighthouses throughout the country. Three of these include the Key West and Jupiter Lighthouses in Florida and the Absecon Lighthouse in Atlantic City, New Jersey. All were constructed in the mid 1800's.

Fallingwater: One of Frank Lloyd Wright's most renowned structures, Fallingwater was designed in 1935 and completed in 1939 near Mill Run, Pennsylvania. The sprawling residence is built atop a waterfall. Exterior and interior paint analysis revealed that Wright employed only two colors throughout the house.

Family Court: The Family Court Building of the City of Philadelphia was built between 1938 and 1940 with a classical design influenced by the Ecole des Beaux Arts. We performed careful cleaning tests on the decoratively painted cornices and ceilings in several courtrooms and suggested conservation of these original finishes, instead of repainting, for the restoration.

Georgia State Capitol: The neo-classical Georgia State Capitol was built between 1884 and 1889 in Atlanta, Georgia. Our investigation and analysis of the original finishes spanned five years, encompassing the exterior of the building and numerous interior rooms and public spaces. We carefully documented the intricate decorative painting in the legislative chambers, evaluating dozens of colors in each chamber and exposing numerous stencil patterns for reproduction on the walls and ceilings. We remained integrally involved in the restoration of the decorative painting and historic finishes throughout the building.

Hale House: The Jonathan Hale House was built in 1826 in Bath, Ohio. In addition to evaluating historic paint colors, we analyzed fragments of several historic wallpapers. Through microanalyses of fiber and pigment composition and research into the history of pattern styles and methods of wallpaper manufacture, we authenticated one wallpaper fragment to the period of interpretation of the building.

Independence Hall: Constructed in the mid 18th century, Independence Hall (The Pennsylvania State House) was the site of the establishment of the United States of America. As part of a major rehabilitation project in the 1990's, we reevaluated the colors and composition of the original finishes in this National Historic Landmark. Our findings confirmed the early use of blue, green and ocher. Colors which are now commonly associated with mid-to-late 18th century American interiors.

Monticello: Thomas Jefferson spent several decades building Monticello in Charlottesville, Virginia, finally completing the construction in 1809. We consulted at the site for over twenty years, investigating and analyzing the historic finishes and participating in numerous restoration projects.

Physick House: The Emlen Physick House was designed by Frank Furness, a well-known Philadelphia architect, and was built between 1879 and 1881 in Cape May, New Jersey. The exterior of the building incorporates a complex color scheme, typical for houses of this style in the Victorian era.

Ross House: The Besty Ross House is an 18th-century brick townhouse in Philadelphia associated with Betsy Ross and the creation of the American flag. Through our analysis of interior finishes, we helped to date various architectural elements in the building. We also evaluated original paint colors and dated several fragments of 18th-century wallpaper. Original 18th-century colors and reproduction wallpaper have been restored in some rooms.

Wentz House: The Peter Wentz House was built in 1758 in Montgomery County, Pennsylvania. It features unique paint colors and sponge-painted wall decorations rarely seen in colonial American homes.

Wingspread: Wingspread was designed by Frank Lloyd Wright in 1939 as the home for H.F. Johnson, the president of S.C. Johnson & Son, Inc., and his family in Racine, Wisconsin. The palette for this Prairie-style residence consisted of four paint colors for the interior plaster, made in an unusual beeswax paint. Carnauba wax, which was not traded outside of Brazil before 1845, was used as a clear finish on the wood trim, cabinetry and flooring.

Williamsburg: The restoration of the historic town of Williamsburg has influenced generations of Americans and their understanding of life, architecture and color in colonial America. In 1987, the Colonial Williamsburg Foundation elected to review and reevaluate its previous research and findings by consulting with Frank S. Welsh. Since then, Welsh has comprehensively investigated and analyzed the paints on nine of the most significant 18th century structures in Williamsburg, which are now repainted with the newly evaluated colors.

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