Marina von Neumann Whitman, of Newbury Court in Concord, MA, died on May 20, 2025, at the age of 90. She was born in New York, NY on March 6, 1935 to noted mathematician John von Neumann and his wife Mariette (Kovesi). She graduated from Radcliffe in 1956. While at Radcliffe, she met and fell in...