Samuel Jefferson Mason

in electrical engineering from Rutgers University in 1942, and after graduation, he joined the Antenna Group of MIT Radiation Laboratory as a staff member.

[3] Mason's doctoral dissertation, supervised by Ernst Guillemin,[4] was on signal-flow graphs and he is often credited with inventing them.

He was the leader of the Cognitive Information Processing Group of the MIT Research Laboratory of Electronics, and he created systems that scanned printed materials and read them out loud for blind people.

Similarly, he developed tactile devices powered by photocells that enabled blind people to sense light.

Mason also served his community as the chairman of the Faculty Committee on Student Environment, a member of the Faculty Committee on Education in the Face of Poverty and Segregation, and a leader of underprivileged youth in the Upward Bound program.