Jane-DoH
There is a good history book available (somewhere) that details the history of GE's aircraft engine business from the beginning. It might go well with the history of P&W's jet engine heritage. The book's title is "Eight Decades of Progress", a heritage of aircraft engine technology. It was published in 1990 and the Library of Congress Catalog Card Number is 90-082948.
There is quite a bit of information in this book that is being discussed here plus much more and you may find it to be a very informative read.
TD