Frost & Granger was an architectural partnership of Charles Sumner Frost

Charles Sumner Frost

Charles Sumner Frost was an American architect.Born in Lewiston, Maine, Frost was first a draftsman in Boston, and a graduate of the Massachusetts Institute of Technology. While working in Boston he worked for the firm of Peabody and Stearns. He moved to Chicago in 1 882. There he began a...

 (1856–1931) and Alfred Hoyt Granger. Frost and Granger were known for their designs of train stations and terminals, including the now-demolished Chicago and North Western Terminal, in Chicago. The firm designed many buildings, some of which are listed on the U.S. National Register of Historic Places

National Register of Historic Places

The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...

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Works (attribution) include:

• Antigo Depot, built 1907, 522 Morse St., Antigo, WI (Frost & Granger), NRHP-listed
• Chicago and North Western Terminal
  Ogilvie Transportation Center
  The Richard B. Ogilvie Transportation Center is a passenger terminal in downtown Chicago, Illinois, USA, serving the three commuter rail lines of Metra's Union Pacific District, which approach the terminal elevated above street level. It occupies the lower floors of the Citigroup Center...
  
  , 1911
• Chicago and North Western Depot, Oak St. NW. Sleepy Eye MN (Frost & Granger), NRHP-listed
• Chicago and North Western Depot, Railroad St. Reedsburg WI (Frost & Granger), NRHP-listed
• Chicago and North Western Railway Passenger Depot, 202 Dousman St. Green Bay WI (Frost & Granger), NRHP-listed
• Chicago and Northwestern Depot, U.S. 212 Redfield SD (Frost & Granger), NRHP-listed
• Dodge County Historical Museum, 127 S. Spring St. Beaver Dam WI (Frost & Granger), NRHP-listed
• LaSalle Street Station
  LaSalle Street Station
  LaSalle Street Station is a commuter rail terminal at 414 S. LaSalle Street in downtown Chicago, Illinois, serving Metra's Rock Island District. It was a major intercity rail terminal for the New York Central Railroad until 1968 and the Chicago, Rock Island and Pacific Railroad until 1978. The...
  
  , 1902
• Racine Depot, 1402 Liberty St. Racine WI (Frost & Granger), NRHP-listed
• Rock Island Lines Passenger Station
  Rock Island Lines Passenger Station (Rock Island, Illinois)
  Rock Island Lines Passenger Station is an historic building located in Rock Island, Illinois, United States. It ceased operating as a railway station in 1980. The building was designated a Rock Island landmark in 1987, and it was listed on the National Register of Historic Places in 1982...
  
  , 3029 5th Ave. Rock Island IL (Frost & Granger), NRHP-listed
• West Madison Depot, Chicago, Milwaukee, and St. Paul Railway, 640 W. Washington Ave. Madison WI (Frost & Granger), NRHP-listed