From the info that I have, Henry Euler born in 1815 Prussia which was once Germany and Russia together. He later moved to the states and settled in LaPorte Co., Indiana. He married on Aug.10,1860 to Elizathbeth Hartsell she was born April 1833 in Penn. She died March 14,1908. Henry and Martha had 8 children: Joseph, Henry W., Charles (my great grandfather),Deccater, Emma, Lizzie, Harrison and Francis Marion Euler. If you have any more information please contact me. Thanks!