My grandfather, John Karl Moser, is one of the many Germans from Russia who came to Colorado. John's father was Karl Moser and Karl had a brother Wilhelm and 9 other brothers and sisters. Some of those siblings raised their familes in South Dakota. Karl Moser married Phillipina Lorenz. John first married Elizabeth Oster and second married Dora (Dorothy) Schlect.
If any of these names match with your family, please contact me. firstname.lastname@example.org