The character whose features REALLY changed was Lee Chan. At first, Andriola made him look like Keye Luke, just as he had made Charlie Chan the image of Warner Oland. Of course, the original conceptions were probably completed, given the nature of newspaper comics, some time before Mr. Oland's untimely passing in early August of 1938, a little over two months before the newspaper strip appeared in print.
I suggest this new book to anyone who enjoys the Chan comics...or ANY comics! It is well done and beautifully produced.