Your Heinrich August (1868) was a brother to my grandfather Frank Heinrich (1883). So far I have 8 children for their parents Franz Heinrich (1835) and G. Marie Onken 1843). I have the same ancestors back to Heinrich August (1795). For G. Marie Onken I have some ancestors back to H.H. Onken (1675). Would like to compare notes and get a bit on your descendency of Heinrich August (1868). E-mail if you are interested.....