PRYOR, WILLIAM CLAYTON.
The streamline train book; a photographic picture book with a story, by William Clayton Pryor & Helen Sloman Pryor.
PRYOR, WILLIAM CLAYTON. The streamline train book; a photographic picture book with a story, by William Clayton Pryor & Helen Sloman Pryor. © 5Aug37; A108281. Helen Sloman Pryor (A & W); 23Feb65; R356334.
Helen Sloman Pryor|A & W