LeBlanc lists this as a pseudonym for H. L. Williams while Library of Congress lists it as an alternate name for Percy B. St. John.
Items with "Boone, Henry L., Lt." as Author32. The Maid of Old Kaintuck; or, The Plague of the Scotia
78. Tiger-Head; or, The Spectre of the Swamp. A Weird Romance of the Western Woodlands
1. The Demon of the Desert. A Thrilling Romance of Wild and Savage Warfare
2. Prairie Pete; or, The Trapper's Avenger. A Romance of Forest and Prairie
13. Big Lige; or, Red Cloud of the Shoshones. Thrilling Tale of Scouts and Indians
14. Zoph Slaughter; or, The Head Hunters of Sunken Lake. A Romance of the Unknown Diggings
19. Tiger-Head; or, The Spectre of the Swamp. A Weird Romance of the Western Woodlands
21. Old Eph, the Man-Grizzly; or, The Veteran of the Scalping-Route
22. Wicked Will; or, The Trapper's Last Shot. A Romance of "The Great Prairie Wilderness."
46. The Mountain Trapper; or, The Ranger and the Bear
47. The Maid of Old Kaintuck; or, The Plague of the Scotia
48. Reckless Rob; or, The Fiery Stampede
72. California Karl, the Wild Puma Slayer. A Tale of the Land of Gold
83. Rolf, the Raven; or, The Combat for a Wife. A Tale of American Adventure in Three Climes