PRYOR, WILLIAM CLAYTON.
The airplane book, by William Clayton Pryor & Helen Sloman Pryor.
PRYOR, WILLIAM CLAYTON. The airplane book, by William Clayton Pryor & Helen Sloman Pryor. © 7Mar35; A80906. Helen Sloman Pryor (W & A); 7Dec62; R306100.
Helen Sloman Pryor|W & A