Here's some information on an e-edition of his biography if you don't already have it. The URL is the last line.
Allen

The Life and Adventures of Nat Love
Better Known in the Cattle Country as "Deadwood Dick" by Himself;
a True History of Slavery Days,
Life on the Great Cattle Ranges and on the Plains
of the "Wild and Woolly" West, Based on Facts,
and Personal Experiences of the Author:
Electronic Edition.
Love, Nat, 1854 - 1921

Funding from the National Endowment for the Humanities
supported the electronic publication of this title.

Text scanned (OCR) by Katherine Anderson and Tom Horan
Images scanned by Fiona Mills
Text encoded by Lee Ann Morawski and Natalia Smith
First edition, 1999
ca. 300K
Academic Affairs Library, UNC-CH
University of North Carolina at Chapel Hill,
1999.
© This work is the property of the University of North Carolina at Chapel Hill. It may be used freely by individuals for research, teaching and personal use as long as this statement of availability is included in the text.
Source Description:
(title page) The Life and Adventures of Nat Love Better Known in the Cattle Country as "Deadwood Dick" by Himself; a True History of Slavery Days, Life on the Great Cattle Ranges and on the Plains of the "Wild and Woolly" West, Based on Facts, and Personal Experiences of the Author.
(cover) The Life and Adventures of Nat Love Better Known in the Cattle Country as Deadwood Dick by Himself
(spine) Life and Adventures of Dead Wood Dick
Nat Love
162 p., ill.
Los Angeles California
1907
Call number Duke 326.93 L897L (Rare Book, Manuscript, and Special Collections Library, Duke University Libraries)
http://docsouth.unc.edu/neh/natlove/natlove.html