Lichtenstein writes to inform Johnson of his completion of two paintings she had seen on a visit to his studio: I know how you must feel, Brad and Girl at the Piano. He includes the original source material of two comic-strip clippings. The source of I know how you must feel, Brad is a comic by Ted Galindo.
Roy Lichtenstein letter to Ellen H. Johnson, 1963 Apr. 5. Ellen Hulda Johnson papers, 1872-1994, bulk 1921-1992. Archives of American Art, Smithsonian Institution.
Current copyright status is undetermined
Archives of American Art, Smithsonian Institution Washington, D.C. 20560