I really don't have any input for you. However, my mother's maiden name was Kaltz. My maternal grandfather was named Joseph (born 1889/died 1977) and he grew up in Centerline, Michigan (Macomb County)back when it was farm land. He had numerous siblings. Two I remember from my childhood were his sisters Mildred and Ide who resided in Colorodo Springs. Do you have any background information on this Kaltz family?