Career Robert Rheinlander was based in Glens Falls, New York and designed and or built many well known and large buildings in the northern New York State area. His career was predominantly from 1900 – 1945 where he designed and rebuilt The Sagamore a grand Victorian hotel on Lake George in 1921–1922 after a fire. Robert designed and or built the following in at are listed on the National Register of Historic Places: the Cunningham House at 161 Warren Street, the Hoopes House at 153 Warren Street, the Hyde Museum at 169 Warren Street.
Additionally, he designed and / or built the Crandall Library, the Finch Pruyne (Finch Paper) Headquarters building in Glens Falls.
Personal Life Rheinlander was born in 1880. Rheinlander died in 1961 and is buried at Glens Falls Cemetery.