That is the same information that I have. I know the Zabran family were the ones that the family talked about. I think work in their store on Blue Inland. I have a picture of Frank(I think it is him) in front. My husband also side that Frank made mouthpiece clarinets. Also that one of his grandfathers soled his patent for lovere windows(like the ones used in greenhouses for a 5 cent raise. All that I know isthat they called him Iron Man Hartmann. I think I still have the newpaper that in was in.