See studies by H. Monroe (1896) and D. Hoffmann (1973).
After the deaths of William Holabird in 1923 and Martin Roche in 1927, the firm was reorganized under the new partnership of Holabird & Root. They worked on many dazzling projects in the late '20s and early '30s, before the Great Depression slowed new construction. These years are notable for the firm's many impressive Art Deco buildings.
The firm weathered the Depression and Root remained an active partner into old age.