Hermann Heinemann
Hermann Heinemann, son of David Heinemann (1819-1902) and founder of _G_alerie Heinemann (1872), managed the Munich business in Lenbachplatz 5/6 together with his brother Theobald (1860-1929). His eldest brother Theodor (1855-1933) presided over the New York branch until 1914. The Galerie Heinemann was aryanized in 1938. Link: http://heinemann.gnm.de/.