Hi Walt,
Okay I see the listing you refer to on FamilySearch. There is a reference to a LDS microfilm, number 1517750. If one of us is willing to borrow the film and see what it may or may not reveal, that would be the next step.
I am impressed by the number of John BROCKMAN search results. The results do make me wonder whether they could all be misreadings; that seems less likely, given the sheer number of results. Still, it is possible that some of them are variations of BROCKWAY, either through mistranslations or deliberate variations on the surname.