Hi Chuck,
yes I'd be interested in receiving a copy of your JUPPE record(s). Can you send it to: mwriedel AT hotmail PERIOD com (replace AT and PERIOD with the symbols).
Heidau only had 804 inhabitants in 1933. I would estimate the village had about the same number in the century before because the land ownership would tend to limit the number of people, even allowing for bigger family sizes. While I have encountered JUPPE in viewing church records from this region, the first name of Michael tends to be rather unusual. So we may be lucky in identifying that individual rather easily.
Michael