hello christina, my name is karen and my great great grandfather is also black harry harley from the sioux tribe.he is my grandfather now who's name is alfred harley's grandfather if you can understand that.i would really like to get in touch with you and maybe we could help one another. my grandfathers father by the way was also alfred harley he is the son of black harry. i have a photograph of black harry on a ship called the doric he was the master marine on board but unfortunatly this is the only photograph that i have. do you have any that you could possibly send me. my grandfather would also like to talk to you. is your grandmother still alive? please get in touch soon thanking you karen grace.