Hello, I know this post about your great grandfather Peter Hahn dates from 11-13 years ago. Still, let me try.
I am a resident of Summit, and once interview an elderly Armenian gentleman, Ardie Gulamerian, who worked in the silk Summit mills as boy (pre-WWI). This interview was in the early 1980s, and Ardie has since died. I have copies of at least two postcards showing these mills.
You made reference to a Summit history published in 1902 by the mills and your willingness to share information from it. I would like to take you up on that offer, if I may.
Good luck and thank you.