Harold E. (Harold Eaton) Babbitt

Born in 1888, Harold Eaton Babbitt studied civil and sanitary engineering at the Massachusetts Institute of Technology, earning his B.S. in 1911. He later joined the University of Illinois, where he built a long academic career in municipal and sanitary engineering and became one of the field's best-known teachers.

Babbitt was especially influential as an author. His textbooks on subjects such as sewerage and sewage treatment, water supply engineering, plumbing, and public-health engineering were widely used and helped define sanitary-engineering education in the United States for decades.

He was also recognized for leadership beyond the classroom. Illinois later honored him for his national and international impact as an engineer, educator, and writer whose work advanced the teaching and practice of sanitary engineering. He died in 1970.