During World War II between 1943 and 1945, Berkowitz served in the United States Army and was stationed in Virginia.

The center became a key gathering place for the Washington Color School artists, including Morris Louis, Kenneth Noland, Howard Mehring, Thomas Downing, and Gene Davis.

[6] His paintings were abstract, and softly radiated colors and tones that one might found in nature.

[12] Berkowitz' work was featured in the postmortem exhibition, Hard and Soft (2002) at ACA Galleries in New York City.

[7] His work was in the exhibit, Painting the Picture (2018–2019), at Museum of Contemporary Art Jacksonville.