“Silas H. Rhodes, co-founder of a trade school for cartoonists and illustrators in Manhattan that he built into the School of Visual Arts, one of the nation’s most important colleges for art and design, died on Wednesday at his home in Katonah, N.Y. … Mr. Rhodes, who remained active as chairman of the school’s board, died in his sleep after spending a full day at his office, said his son David, who is the school’s president.”