He is the brother of H. H. Liebhafsky, and I believe they both were at
Texas-Austin, when that department had a strong institutionalist
(American-style, as in Veblen-Commons tradition) flavor. They both
published often in the Journal of Economic Issues. They also both were
very involved in developing and promoting the pragmatist (Dewey-Peirce
tradition) philosophical base for institutionalist economics. There is
a very good oral tradition about their teaching and supervising of
students.
Mathew Forstater