Elwyn Berlekamp (1940–2019) was an American mathematician.
One of my colleagues at Bell Labs, a fellow named Elwyn Berlekamp, was there during that summer. He was using it too, and an error in his program. So his graphics output came out with a random jumble of lines all over the place.
A. Michael Noll, A. Michael Noll on 1960s Computer Art at Bell Labs