Over the next 10 years he worked his way up to Assistant Production Manager at Trem Carr Productions , ( later known as Monogram Pictures ) .
Fred Ahern began his career stacking lumber at Pathe Studios .
Over the next 10 years Fred Ahern worked Fred Ahern 's way up to Assistant Production Manager at Trem Carr Productions , ( later known as Monogram Pictures ) .
Fred Ahern began his career stacking lumber at Pathe Studios .