He practiced law in Boston, and also joined the United States Army Air Forces during World War II.

Umana began his political career by serving in the Massachusetts House of Representatives as a Democrat from 1949 to 1952.

Umana returned to law in 1973 by becoming a judge for the Boston Municipal Court until retirement in 1991.

[3] Umana married Anne T. Nigro, with whom he resided in the Orient Heights area of East Boston.

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