[2][3] At the age of 16, Bromberg was chosen the winner of the prestigious George Bellows Award, a national art competition among high school students.

[4] He studied at the Colorado Springs Fine Arts Center, with Boardman Robinson and Henry Varnum Poor, from 1932 to 1940.

Bromberg completed three murals for the New Deal's Section of Fine Arts:[4] Greybull, Wyoming,[5] Tahlequah, Oklahoma,[6] and Geneva, Illinois.

Bromberg was assigned to serve with the European Theater of Operations (England, France and Germany) and landed on Omaha Beach in June 1944.

[15] In the 1960s, while Professor of Painting at the State University of New York at New Paltz, Bromberg created a series of monumentally-scaled castings of cliff faces.