St. George is in the Loyola Kids Book of Saints by Amy Welborn. The only part of the chapter that is online in any form is the last page, so I grabbed that and scanned the first page of the chapter from a copy - so take a look. In the first part of the chapter I try to strike the balance between what we think we know about George and the legendary material. But I also always try to respect the legendary material as an expression of a truth - here, the courage required to follow Christ. He's in the section, "Saints are people who are brave."