I am also researching Maggie Luther. The three children listed in the 1880 census in Arkansas are Joseph Anthony Ellerkamp B 1860 D 1945 and Charlotte Louise Ellerkamp B1874 D ?. There father is Anton Ellerkamp (camp)(hamp) and mother is listed as Maggie Wilbert (Milbest). Father born 1839 in Prussia mother born abt 1848 in Prussia.All lived in Vincennes,Indiana. Anton died in 1874 some 4 years before the third child John Henry Ellerkamp was born He was born in either 1875 or as his grave marker states 1878.Maggie Luther is the mother but who was the father. She used her married name for John's last name.All three are listed as STEP CHILDREN of Maggie Luther. This is from the 1880 census records and they are living in Little Rock, Arkansas.The files also say that Maggie is the widow of Herman Luther although I can find no record of the marriage or his death. The 1900 census has John married to Nettie (?)in 1896 and they have 2 children Harry M. B 1897 and Mary 1899-1900 (says she is 11/12). They are still in Little Rock Arkansas. Am Looking for any information anyone may have. I can find nothing to slove the mystery of some of these births and seaths.