William Ward Pigman

William Ward Pigman (March 5, 1910 – September 30, 1977) was a chairman of the Department of Biochemistry at New York Medical College, and a suspected Soviet Union spy as part of the "Karl group" for Soviet Military Intelligence (GRU).

Biography
He was born on March 5, 1910.

He had a Ph.D. in chemistry. He worked for the National Bureau of Standards and the Labor and Public Welfare Committee. Earlier he had been a professor at the University of Alabama.

He supplied documents to Whittaker Chambers and J. Peters for Soviet intelligence as early as 1936. In his book, Witness, Whittaker Chambers refers to Pigman using the pseudonym "Abel Gross". The Gorsky Memo cites him as "114th".

In 1954, he was at the Department of Biochemistry, of the New York Medical College.

He died on September 30, 1977, in Woods Hole, Massachusetts from a heart attack.