Hi Karen -- Since you found the GBHS message board, oldMilwaukee.net and another Rootsweb board (based on your posting history) -- all free sites -- you should also be able to master a free browser search and maneuvering around free online library catalogs. There's free access to most of our area libraries too.
The funny thing about "free research" is that somebody always has to pay for it!
P.S. You read the old posting that the full index was temporarily available on a terminal at the Salzmann Library for over a year. I removed it because of recurring damage and attempted thievery by some in our community. Luckily most of the dates when the activity occurred were recorded by my logging program, and the library security system recorded images of who used the library on those days should prosecution be necessary - that's in addition to the IT professional that offered to make changes to my property without my authorization, a substitute worker, and a well-known person in Milwaukee's German cultural community that was nosing around the terminal on a day that I visited the library.