Edward Hitchcock by Leopold Grozelier after John Adams Whipple, 1855, lithograph with tintstone on paper, from the National Portrait Gallery - NPG-NPG 85 176, Leopold Grozelier

Edward hitchcock by leopold grozelier after john adams whipple, 1855, lithograph with tintstone on paper, from the national portrait gallery which has explicitly released this digital image under the cc0 license. (https://npg. Si. Edu/object/npg_npg. 85. 176). Date: 1855.