Career
He worked for H. H. Richardson in Brookline, for his successors Shepley, Rutan & Coolidge in Boston and for McKim, Mead & White in New York City.
Howard began professional practice in 1893, when he formed the firm of Howard & Cauldwell with engineer Samuel M. Cauldwell. In 1899, they were joined by Lewis Henry Morgan, and the firm became known as Howard, Cauldwell & Morgan. Works in the east included the Electric Tower, the centerpiece of the 1901 Pan-American Exposition. They also submitted an unsuccessful entry in the competition to design the Master Plan for the University of California, Berkeley. Despite not winning the commission outright, in 1901 Howard dissolved his partnership when he was chosen by the Regents of the university to execute the accepted plan, known as the Hearst Plan. In 1902, he reestablished his practice at Berkeley, and in 1903 formally established the School of Architecture, now part of the College of Environmental Design. As supervising architect of the University of California, Howard built extensively. His most famous buildings are the Campanile, California Memorial Stadium, Sather Gate and the Hearst Greek Theatre.
In 1904, Howard relocated his office to San Francisco, and after the 1906 San Francisco earthquake formed the firm of Howard & Galloway with engineer John D. Galloway. This partnership was dissolved in 1908. After fifteen more years of private practice he formed the firm of John Galen Howard & Associates, with associates Henry Temple Howard, E. Geoffrey Bangs, Henry C. Collins and Charles F. B. Roeth. Howard's projects during these years include several buildings at the Alaska–Yukon–Pacific Exposition in Seattle, three of which were designed to be reused by the University of Washington, and the San Francisco Civic Auditorium. Howard's influence at the university began to wane after the retirement of president Benjamin Ide Wheeler in 1919, and he was seen as uncooperative by the Board of Regents. In 1922, the commission for the new Hearst Memorial Gymnasium was awarded to Julia Morgan and Bernard Maybeck without his input, and in 1924 his contract as supervising architect was not renewed. In 1927, he resigned as director of the School of Architecture and retired from his architecture practice, though he continued to teach at the university until his death in 1931.