On the contrary, Wittgenstein’s most illustrious student was the famous Catholic analytic philosopher Elizabeth Anscombe, whose work is worth taking a look at. A few collections of her essays were recently published, one of which is titled
From Plato to Wittgenstein
, and many of the essays are, of course, on Wittgenstein. (They are fairly difficult, however. It is probably worth reading Wittgenstein first.) Some of her other recent collections are a bit more accessible:
Human Life, Action, and Ethics and
Faith in a Hard Ground. I believe she wrote a commentary of sorts on Wittgenstein’s
Tractatus, and she even offered the first major translation of his
Philosophical Investigations (and a few other works), though I think that P.M.S. Hacker has improved her translation since.
I understand that Anscombe was Catholic; indeed, Wittgenstein remarked to his student and friend M. Drury “I seem to be surrounded now by Roman Catholic converts! I don’t know whether they pray for me. I hope they do.” (Recollections, page 148)
I wouldn’t say that Wittgenstein is impossible to integrate with Catholic philosophy. Elizabeth Anscombe and Peter Geach (her husband, who recently passed) are examples to the contrary. Certainly his Tractatus