I am searching for information on George W. Jarchow who was with the Army and had a hotel at Pine Ridge, South Dakota and translated from Sioux to English. He also farmed arond Gordon, Nebraska. He married Caroline L. Brinker in 1880. They had 5 children - George F., Charles L., Mabel C., Myrtle & Frank.
Does this sound like your family? If so, would like to communicate further.