Later, Scott produced documents that showed that Fanny's maiden name was "Marks" so we were getting closer.
Years past and nothing new had been discovered - until today.
Today I found the obituary for Emil Marks, and in it is shown that Emil and Louis were indeed brothers, AND that his sisters were Mrs. S. Lust and Mrs. I Schudmack.
Well, sports fans - Fanny was indeed married to Simon Lust who was a colleague of Emil throughout the years.
So... we now "know" that Fanny is indeed Louis and Emil's sister, and even better - we have another sister - Mrs. Schudmack to research!
Here is the obituary for your viewing pleasure.