O’Meara, Thomas F. “Johannes B. Lotz, S.J., and Martin Heidegger in Conversation: A Translation of Lotz’s Im Gespräch.” American Catholic Philosophical Quarterly 84/1 (2010) 125-131.
Lotz and Rahner were companions. As students, they had 4 semesters with Heidegger in Freiburg, if I am not mistaken.
Lotz taught at Munich and at the Gregorian. He reports that Heidegger was grateful to him for trying to dispel misunderstandings of his thought at the Greg.
Lotz has a book called Martin Heidegger und Thomas von Aquin. He seems to be saying that some of Heidegger's insights were anticipated by Thomas. That would be interesting.