David Lavender (February 4, 1910-April 26, 2003) was a well-known historian of the Western United States. Born in Telluride, Colorado, Lavender spent most of his life in Ojai, California.
Partial list of notable books:
One Man's West ISBN 0803258550 (memoir, written in 1943)
Westward Vision: The Story of the Oregon Trail ISBN 0803279159
The Great Persuader ISBN 0870814761 (biography about Collis Huntington).
In 2002, Stephen Ambrose was accused of plagiarizing from The Great Persuader.