I'm searching for any record of the following FRIEDRICH siblings born in
Peter Friedrich, born 3 June 1846
Johannes Friedrich, born 11 Feb 1849
Eva Margaretha Friedrich, born 31 Jan 1857
And their mother:
Eva Margaretha Friedrich (born Henkel), 19 Feb 1816
All emigrated about 1870. The young men probably in the late 1860s and the mother and daughter after 1871.
Thanks for any help.