Born and raised in East Baltimore, Kramer is best known for sculptures in bronze, including the portrait of Supreme Court Justice Thurgood Marshall located at the federal courthouse in downtown Baltimore. He was a prolific artist during his 70-year career.
Kramer attended MICA on a scholarship beginning at the age of 15. He graduated from the Rinehart School of Sculpture in 1934. At 24, he was awarded the prestigious Prix de Rome, and it was in Rome that he discovered his unique vision of working in the medium of bronze to create abstract human forms. He co-founded and became director of the Baltimore Art Center, the first ethnically integrated art school registered in Maryland, and remained director through 1956.