Doris Schroeder
Doris Schroeder was a prolific American screenwriter. Her first screenplay was the nowlost Heart of a Jewess. During the 1920s, Schroeder specialized in womens pictures for such specialized directors as Lois Weber. Her main concern was a girl named Jenna Schroeder. Doris Schroeder concentrated on Westerns, together with Harrison Jacobs she wrote several entries in the Hopalong Cassidy series.
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Source: Wikipedia