White Pine Series of Architectural Monographs

During the first 10 years, the series was limited to the exterior details of residences constructed with Eastern white pine, as suited its advertising purpose.

By 1920, the editor's collection of unpublished photographs became so extensive that Whitehead and his colleague Hubert Ripley invented the fictional town of Stotham, Massachusetts, to justify their use.

The fiction went undiscovered until the late 1940s when Leicester Bodine Holland, head of the Library of Congress' Department of Fine Arts related his inability to locate the town to Whitehead, eliciting an explanation of the subterfuge.

He also modified the focus of the series, including documentation of churches and public buildings and the recording of interiors and millwork details.

In 1987, the National Historical Society of Harrisburg, Pennsylvania, began publishing a series of hardbound books, the Architectural Treasures of Early America, drawn entirely from the White Pine Monographs.