What is the square footage of this mansion in Duluth, Minnesota, operated by the University of Minnestoa Duluth as a historic house museum, indelibly linked with the Congdon name?
Chester Adgate Congdon: Chester Adgate Congdon (June 12, 1853 – November 21, 1916), lawyer and capitalist, was born in Rochester, New York, on June 12, 1853, his parents being Sylvester Laurentius and Laura Jane (Adgate) Congdon. Chester Adgate Congdon:  The Congdon name is indelibly linked with the Glensheen Historic Estate in Duluth, Minnesota. Glensheen Historic Estate: Glensheen, the Historic Congdon Estate is a 27,000 square foot mansion in Duluth, Minnesota, United States, operated by the University of Minnesota Duluth as a historic house museum.
27,000