Petar Rakov 1877–1907 Source: Wikimedia Commons About Petar Rakov Bulgarian revolutionary People from the Same Era Piet van der Hem 1885–1961 cartoonist, draftsperson, editorial cartoonist, etcher, graphic artist, graphic designer, illustrator, lithographer, painter, pastellist, publicity graphist, watercolorist Wirdum Robert Spencer 1879–1931 painter Harvard Elizabeth Watson 1870–1928 editor, scholar Lismore Viktor Vorobyov 1875–1906 mineralogist, scientist Krasnodar Herbert Edward Palmer 1880–1961 poet Karl Mützelfeldt 1881–1955 pedagogue, theologian Hermannsburg