I have several German lines (but no Klossets or Bossongs) from Otterberg and have read through many of the LDS microfilms on Otterberg. This week I borrowed a book on Otterberg on interlibrary loan (it was difficult to find -- only 4-5 libraries in the USA have it and LDS doesnot have it) and the book does mention Klossets. The book's title is: 300 Jahre Auswanderung aus Otterberg (roughly, 300 years of immigration from Otterberg), compiled by Hans Steinebrei, published 1999, Kaiserslautern, by the Institut fur pfalzische Geschichte und Volkskunde, ISBN 3-927754-42-0. Page 44 and 90 mention Klosset/Clossets. You may have this information already, but just in case you don't: p. 44 includes: "Closset, Lorenz, [born] 4.11.1852 in Schneckenhausen, Nagelschmied ; [his parents] Franz Closset and Elisabeth Bossung. Auswanderungserlaubnis [Immigration papers] 11/3/1870 von Otterberg aus in die USA." It has other information on Clossets back to 1690 in Otterberg. I think "Nagelschmied" translates as "nailsmith", maker of nails. If you need more info., e-mail me, Linda Heck Blanton.