architect, planner and developer, was born in Towson, Maryland, and grew up in Baltimore, the third child of Albert Truman and Charlotte Cassell. His father drove a coal truck and played trumpet for the Salvation Army Band; his mother brought in extra income doing washing. As a 14-year-old, Cassell expressed an ambition to build at Douglass High, a segregated public vocational school. While studying carpentry he enrolled in a drafting course with Ralph Victor Cook. Cook became a mentor to Cassell and encouraged him to pursue a college education in architecture at Cornell University, where Cook had been an early African American graduate of engineering.
Cassell entered Cornell in 1915, but two years into the program, World War I interrupted his studies. Cassell enlisted in the U.S. Army. In 1919 he returned to the United States from France with an honorable discharge Because Cornell ...