- San Francisco Art Association First Purchase Prize, 1936.
- Chicago Art Institute International Watercolor Exhibition Award, 1941.
- Guggenheim Fellowships, 1941 and 1942.
- Audubon Artists Medal of Honor, 1946.
- National Academy of Design, elected associate 1946. Received academy competition awards in 1963, 1971, 1975, 1977, including the 150th Anniversary Gold Medal Award.
- Philadelphia Watercolor Club competition awards, 1950 and 1968.
- American Watercolor Society competition awards, 1956, 1960, 1962, 1964, 1965, 1967, 1972, 1973, 1976, 1977, 1979, 1986, 1988, 1989, 1990, 1991, 1993, 1995 and 1997.
- American Watercolor Society Dolphin Medal Award, 1987.
- Metropolitan Museum of Art Award, 1953.
- Pennsylvania Academy of Art Award, 1953.
- U.S. Department of State International Cultural Exchange, 1954.
- Audubon Artists Award, 1958.
- San Diego Art Gallery Award, 1968
- Detroit Museum Award
- Academy of Art College San Francisco Honorary Doctorate for Human Letters, 1987