Sinews of Steel

Alberta Vaughn

Helen Blake

Gaston Glass

Robert McNeil Jr.

Anders Randolf

Robert McNeil Sr.

Paul Weigel

Jan Van Der Vetter

Greta von Rue

Elsie Graham

Nora Hayden

Martha Jenkins

Charles Wellesley

Douglas Graham

John H. Gardener

Elmer Price

Robert Gordon

The Office Boy

Ray June

Director of Photography

Henry McCarty

Writer

Frank O'Connor

Director

Samuel Sax

Presenter

Delos Sutherland

Writer

Edith Wakeling

Editor

Herbert C. Clark

Story