According to A. Stempnik, Caspar Joseph Mertz, Leben und Werk ... c1990 (p.57, etc.), his name was definitely not Johann Kaspar as given in most sources, but Josef Kaspar; however, order of forenames uncertain; newspaper reports used K. or C. Mertz; some works signed K. Mertz, later works with initials J.K.; an early source incorrectly listed his forenames as Johann Kaspar" (Source: Library of Congress Authorities). Note: all Wikipedia languages use "Johann Kaspar Mertz" without reference to "Joseph", and he isn't listed at all by Grove — P.davydov 16:58, 28 March 2009 (EDT)