Graham, Anderson, Probst & White (GAP&W) was a Chicago-based 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.
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