PRYOR, WILLIAM CLAYTON.
The trailer book; a photographic picture-book with a story, by William C. Pryor & Helen Sloman Pryor.
PRYOR, WILLIAM CLAYTON. The trailer book; a photographic picture-book with a story, by William C. Pryor & Helen Sloman Pryor. © 17Feb38; A115033. Helen Sloman Pryor (A); 20May65; R361941.
Helen Sloman Pryor|A