Graham, Anderson, Probst & White

Graham, Anderson, Probst & White (GAP&W) was a Chicago architectural firm that was founded in 1912 as Graham, Burnham & Co. This firm was the successor to D. H. Burnham & Co. through Daniel Burnham's surviving partner, Ernest R. Graham, and Burnham's sons, Hubert Burnham and Daniel Burnham Jr. In 1917, the Burnhams left to form their own practice, which eventually became Burnham Brothers, and Graham and the remaining members of Graham, Burnham & Co. – Graham, (William) Peirce Anderson, Edward Mathias Probst, and Howard Judson White – formed the resulting practice. The firm also employed Victor Andre Matteson.

Graham, Anderson, Probst & White was the largest architectural firm under one roof during the first half of the twentieth century. The firm's importance to Chicago's architectural legacy cannot be overstated, nor can its connection to Burnham.

The firm was headquartered in Burnham's own Railway Exchange Building. In part from its connection to Burnham, the firm captured the majority of the big commissions from 1912 to 1936, including such iconic works as the Wrigley Building, Merchandise Mart, Field Museum, Shedd Aquarium, Civic Opera House, and the former central Chicago post office. Its only close rival was the equally prolific Holabird and Root.

GAP&W also created the iconic Terminal Tower in Cleveland and Federal Reserve Bank in Kansas City.

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