We have accumulated images of all the known oil paintings of Francis Quirk that we have been able to locate and placed them into a slideshare presentation. (The University of Notre Dame Snite Museum does not allow reproductions of their works to be shared. Thus their holding is not included.)
We know that there are many other works out there as a profile in the Lehigh University Alumni Magazine from 1951 mentions that he executed 6 canvases and over a dozen portraits in the previous year. You can visit the Image Library Presentation through this link.