I am looking for any information on Ernst Martin Henke b.1838 in Prussia, came to America with his wife Martha Bartels Henke b.1846 - Martha was from Mecklenberg, and their eldest son was born there as well. They had 4 sons. William, Ernst, Gustav, and Herman Ernst Henke (b.1875/76). Ernst, Gustav, and Hermann were born in Illinois. I found them in the 1880 Census living on the Otoe Reservation in Marshall, Kansas, later they moved to Hinton, Oklahoma and then settled in Geary, Oklahoma. They had many children, most who died quite young. This is all I really know and I need help.