 Even before the geographical frontiers had closed, The American Baptist Home Mission Society found new frontiers in the work with freed men and women in the post-Civil War South and with new immigrants in large urban areas and in rural America.The first immigrant American Baptist Church was The German Church of the Lord that Meets on Poplar Street in Philadelphia, organized in 1843 by Konrad Fleischmann.He became the first American Baptist home missionary to German immigrants and was soon joined by John Eschmann, who was appointed in 1845 as a missionary to the Germans in New York City and Newark, N.J.