There is a Neil Hagemeister on facebook, his picture looks like he's fairly young, but with a unique name like that it could well be his father you're looking for.
https://www.facebook.com/neil.hagemeister
if you're not on FB I'll be happy to send him a message and put you in contact if he is the right one (or his son).
I found the owner of mine that way... his son had the same name and I sent him a message, he connected me with his father and he filled me in with a lot of history and even had some spare parts he sold me.
MH