| I and Claudie by Dillon Anderson, A. C. Greene - 2000 - 247 pages |
| I Pearl Hart by Jane Candia Coleman - 1998 - 222 pages |
| I Used to Be a Texas Ranger by Robert J. Gossett - 2011 |
| I, Pearl Hart by Jane Candia Coleman - 1999 - 312 pages |
| I, Quantrill by Max McCoy - 2008 - 244 pages |
| I, Tom Horn by Will Henry - 1975 - 339 pages |
| Idaho Blood Spoor by Jon Sharpe - 2006 - 280 pages |
| Idaho Gold Fever by Jon Sharpe - 2009 - 167 pages |
| Idaho Impact by Jon Sharpe - 2007 - 162 pages |
| Idaho! by Dana Fuller Ross - 1984 - 338 pages |
| Il re della prateria by Emilio Salgari - 2004 - 278 pages |
| Illinois Prescott by G. Clifton Wisler - 1987 - 224 pages |
| Illinois! by Dana Fuller Ross - 1987 - 433 pages |
| Immaculate Charms of the Sceptered Veil by Mark T. Farias - 2010 - 104 pages |
| Imperial Kelly by Peter Bowen - 2013 - 210 pages |
| In Alaska with Shipwreck Kelly by Dan Cushman - 1997 - 323 pages |
| In Alaska with Shipwreck Kelly by Dan Cushman - 1996 - 226 pages |
| In For a Pound by J. R. Roberts - 2004 - 192 pages |
| In search of Centennial by John Kings - 1978 - 143 pages |
| In the Carquinez woods by Bret Harte - 1912 - 460 pages |
| In the Hills of Monterey by Max Brand - 2002 - 239 pages |
| In the Hills of Monterey by Max Brand - 1999 - 340 pages |
| In the Season of the Sun by Kerry Newcomb - 2003 - 384 pages |
| In the Shadow of the Alamo by Grady DuBose - 2001 - 216 pages |
| In This Earth and In Heaven by Kennith Swinford - 2010 - 218 pages |
| In Time of Harvest by John L. Sinclair - 1943 - 226 pages |
| Incident at Butler's Station by Richard Wyler - 2004 - 256 pages |
| Incident at Copper Creek by Michael Senuta - 2003 - 182 pages |
| Incident at Fort Keogh by Richard S. Wheeler - 2008 - 192 pages |
| Incident at Fort Keogh by Richard S. Wheeler - 1991 - 316 pages |
| Incident at Fort Keogh by Richard S. Wheeler - 1990 - 192 pages |
| Incident on the way to a killing by Michael Hammonds - 1977 - 182 pages |
| Indian Love Letters by Marah Ellis Ryan - 2009 - 130 pages |
| Indian Love Letters by Marah Ellis Ryan - 2009 - 130 pages |
| Indian Love Letters by Marah Ellis Ryan - 2008 - 128 pages |
| Indian love letters by Marah Ellis Ryan - 1920 - 122 pages |
| Indian Tales and Others by John G. Neihardt - 2009 - 306 pages |
| Indian tales and others by John Gneisenau Neihardt - 1926 - 306 pages |
| Indian Territory by Matt Braun - 2011 - 256 pages |
| Indian Territory by Matt Braun - 1985 - 256 pages |
| Infrastrata by Daniel Mega - 2011 |
| Injun and Whitey to the Rescue by William S. Hart - 2008 - 188 pages |
| Innocent Blood by J. R. Roberts - 2005 - 182 pages |
| Inside Straight by Zeke Masters - 1982 - 172 pages |
| Into Far Mountains by Fred Grove - 1999 - 283 pages |
| Into the Heartland by Len Custer - 2009 |
| Into the Second Springtime by June Marie W. Saxton - 2010 - 516 pages |
| Iron Eyes by Michael D. George - 2001 - 216 pages |
| Iron Horse Warrior by Jack Ballas - 1996 - 280 pages |
| Iron mustang by Jake Logan - 1978 - 172 pages |
| Iron Trail by Tim Champlin - 2002 - 217 pages |
| Iron Trail by Tim Champlin - 2001 - 252 pages |
| Iron Trail by Tim Champlin - 2001 - 252 pages |
| Ironheart by William MacLeod Raine - 2005 - 296 pages |
| Isaiah's Land by J. J. Haefner - 2005 - 268 pages |
| Ishmael Reed by Jay Boyer - 1993 - 52 pages |
| Island Devils by Jon Sharpe - 2005 - 261 pages |