Raymond Edward "Ray" Johnson was an American artist. Known primarily as a collagist and correspondence artist, he was a seminal figure in the history of Neo-Dada and early Pop art and was described as "New York's most famous unknown artist". Johnson also staged and participated in early performance art events as the founder of a far-ranging mail art network – the New York Correspondence School – which picked up momentum in the 1960s and is still active today. He is occasionally associated with members of the Fluxus movement but was never a member. He lived in New York City from 1949 to 1968, when he moved to a small town in Long Island and remained there until his suicide.

Cass Technical High School is a magnet high school in Midtown Detroit, Michigan, United States. It was established in 1907 and is part of the Detroit Public Schools Community District. It is named after Lewis Cass.