How many bishops are there in Europe and what are they all like?  I am from the states so we do not hear much about them.  The only one we hear about once in a while is Bishop Stuyver and that's because of his relationship with Bishop Sanborn. 

This is quite the effort and is very informative.

What jumped out at me, was the episcopal lineage, if it can be called that, of "Pope Pius XIII" (Fr Lucian Pulvermacher), in which he essentially got himself elected in a rump conclave of a few laymen, then invoked his priestly orders to make Gordon Bateman a "bishop", who in turn consecrated him as a bishop.

The chart shows both Pulvermacher and Bateman with a dashed outline around their names, which according to the key is supposed to designate Modernist bishops consecrated in the new rite.  That is incorrect.

Too bad Pulvermacher wasn't actually the Pope.  He would have made a good one, a far sight better than who we have now (assuming the see is not vacant).  Ditto for David Bawden.  If you ever watch the docuмentary about him, no, he wasn't "crazy" at all, in fact, he comes across as quite normal, of above-average intelligence.  His circuмstances were no more bizarre than those of a rugged, possibly kind of rednecky fisherman who became the first Pope.

I wouldn't know. I'm from Florida.

I think the guy who puts it together is actually Italian, as the key is the same as another organigram I found dated to 2017. You've probably seen it before. Haven't seen any contact info, yet. Putting out feelers in the trad/sede groups in Europe, particularly Italy, would probably be the best bet. Might do that soon myself, but don't have any particular reason to right at this moment.