Comic Book Resources has an interview with Dean Mullaney and Kurtis Findlay, who have edited Chuck Jones: The Dream that Never Was, a collection of the comic strip Crawford that Jones did in the late 1970s. The book will be available in December.
I remember reading the strip and clipped a few of them before I lost interest. One of the ironies of Jones' career is that he received more attention and opportunity when his work was in decline than he did when he was at his peak. Crawford suffers from the cuteness that infected much of his post-Warner Bros. work and the coarsening of his drawing that also occurred then.
I will definitely look this book over when it is published for the opportunity to see unpublished work and to compare my current impression with my memories of the strip, but I don't believe that Crawford is a hidden treasure that will add anything to Jones' reputation. This is not Peanuts or Calvin and Hobbes. If it was, the strip never would have been cancelled and would be better known today.