Frederick Keppel (1845–1912) was an American art dealer, scholar, writer, owner and founder of Frederick Keppel & Company. Keppel came to America in 1864 and became a print dealer in 1868. He was a patron and promoter of the Etching Revival and etchers including Whistler, Zorn, Buhot and Pennell. He gave Félix-Hilaire Buhot his first one-man...