© Francois Koch, Blackberry Creek, n.d., graphite on paper, 8.5 x 12", Gift of Steven and Wendie Olshan

© Nicholas Wilson, Home of the Desert Rat (Preliminary brush and ink sketch), 37681, ink on paper, 22.5" x 24.75" x 0"

© Carrie L. Ballantyne, Barak, Young Buckaroo, 2000, colored pencil, 26" x 22.25" x 1"

© Carrie L. Ballantyne, Her Father's Daughter, 2000, colored pencil, 37.5" x 26" x 2"

© Carrie L. Ballantyne, Untitled (Portrait of Indian Girl), n.d., pencil on paper, 12" x 8" x 0"

© Harley Brown, Journey to Rosebud, n.d., pencil, 46" x 37" x 2.5"

© Duane Bryers, "Red River Crossing " Sketch, n.d., pencil on paper, 6.5" x 7.12" x 0"

© Duane Bryers, "Red River Crossing " Sketch, n.d., pencil on paper, 8.5" x 11" x 0"

© Duane Bryers, "Red River Crossing " Sketch, n.d., pencil on paper, 8.5" x 11" x 0"

© Duane Bryers, "Red River Crossing " Sketch, n.d., pencil on paper, 8.5" x 11" x 0"

© Duane Bryers, "Red River Crossing " Sketch, n.d., pencil on paper, 8.5" x 11" x 0"

© Duane Bryers, "Red River Crossing " Sketch, n.d., pencil on paper, 8.5" x 11" x 0"

© Duane Bryers, "Red River Crossing " Sketch, n.d., pencil on paper, 8.5" x 11" x 0"

© Gary Carter, A Show Of Force (pencil), 2001, pencil, 34.25" x 51" x 0"

© Donald V. Crowley, The Premonition (James Butler Hickok 1837-1876), 1988, pencil, 27" x 23" x 2.5"

© Donald V. Crowley, The Two Worlds of Bat Masterson (Bertholomiew "Bat" Masterson 1853-1921), 1988, pencil on paper, 27" x 23" x 1.5"

© Donald V. Crowley, The Making Of A Legend (Patrick Floyd "Pat" Garrett 1850-1908), 1988, pencil on paper, 27" x 23" x 1.5"

© Donald V. Crowley, Well I'll Be Damned (John Henry "Doc" Holiday 1852-1887), 1988, pencil on paper, 27" x 23" x 1.5"

© Donald V. Crowley, Day Of Decision, 1988, pencil on paper, 27" x 23" x 1.5"

© Donald V. Crowley, The Last Summer (Wyatt Berry Stapp Earp, 1848-1929), 1988, pencil, 27" x 22" x 2.5"

© Jack Davis, 2004, pencil on paper, 11" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, 2004, pencil on paper, 11" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, 2004, pencil on paper, 11" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, 2004, pencil on paper, 11" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, 2004, pencil on paper, 11" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, 2004, pencil on paper, 11" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, 2004, pencil on paper, 11" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, 2004, pencil on paper, 11" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, 'Nother Day. 'Nother Dollar, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Where'd Thet Heffer Go?, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Come An' Git It!, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Somebody Luves Me., n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, I Plumb Fergit Whutta Pretty Gal Looks Like, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Cards Any One?, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Ya Cheater!, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Reach Fer' Th' Ceilin'!, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Try An' Git It!, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Wanted, n.d., charcoal, 21.5" x 15.5" x 1", Gift of Jack Davis

© Jack Davis, I Wouldn't Reach Fer Thet - If I Wuz Yew., n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, I'm Th' Law Here!, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Hair Cut?, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Billy the Kid, n.d., charcoal on paper, 14" x 8.5" x 0", Gift of Jack Davis

© Jack Davis, Try an' Take it!, n.d., watercolor and ink on paper, 21.5" x 15.5" x 0.5", Gift of Jack Davis

© Jack Davis, Draw!, n.d., watercolor and ink on paper, 21.5" x 15.5" x 0.5", Gift of Jack Davis

© Jack Davis, Cards Anyone?, n.d., watercolor and ink on paper, 21.5" x 15.5" x 0.5", Gift of Jack Davis

© Jack Davis, I'm the Law Here, n.d., watercolor and ink on paper, 21.5" x 15.5" x 0.5", Gift of Jack Davis

© Jack Davis, 'Nother Day...'Nother Dollar, n.d., watercolor and ink on paper, 21.25" x 15.5" x 0.5", Gift of Jack Davis

© Jack Davis, Wanted: Dead or Alive, n.d., watercolor and ink, 21.5" x 15.5" x 1", Gift of Jack Davis

© Jack Davis, Plum Fergit Whut a Pretty Gal looks like!, n.d., watercolor and ink on paper, 21.5" x 15.5" x 0.5", Gift of Jack Davis

© Jack Davis, Come an' git it!, n.d., watercolor and ink on paper, 21.5" x 15.5" x 0.5", Gift of Jack Davis

© Jack Davis, Where's a Tree, n.d., watercolor and ink on paper, 21.5" x 15.25" x 0.5", Gift of Jack Davis

© Jack Davis, Somebody Loves Me!, n.d., watercolor and ink on paper, 21.5" x 15.5" x 0.5", Gift of Jack Davis

© Jack Davis, Y' have the right to remain silent., n.d., mixed media, 26.25" x 20" x 1", Gift of Jack Davis

© Jack Davis, There's Gold up in them Hills, n.d., watercolor and ink on paper, 21.5" x 15.25" x 0", Gift of Jack Davis

© Jack Davis, Up toward the east Down towards the west, n.d., watercolor and ink on paper, 21.25" x 15.5" x 0", Gift of Jack Davis

© Jack Davis, Sam Hall "I hate you one and all?", n.d., watercolor and ink on paper, 21.5" x 15.5" x 0", Gift of Jack Davis

© Jack Davis, Rusty, n.d., watercolor and ink on paper, 21.5" x 15.5" x 0", Gift of Jack Davis

© Jack Davis, Little Joe the Wrangler, n.d., watercolor and ink color, 22.25" x 15.25" x 0", Gift of Jack Davis

© Jack Davis, 1992, watercolor and ink on paper, 20.25" x 19.25" x 0", Gift of Jack Davis

© Jack Davis, 1992, watercolor and ink on paper, 23.5" x 18.5" x 0", Gift of Jack Davis

© Jack Davis, 1992, Watercolor and ink on paper, 21.25" x 18.75" x 0", Gift of Jack Davis

© Jack Davis, 1992, watercolor and ink on paper, 23.25" x 18.25" x 0", Gift of Jack Davis

© Jack Davis, , n.d., charcoal and ink on paper, 21.25" x 15.5" x 0", Gift of Jack Davis

© Chuck DeHaan, unknown, 1991, pencil on paper, 0" x 0" x 0"

© Charlie Dye, Starting the Big Circle (study), n.d., pencil, 28.25" x 45.5" x 0"

© Fred Fellows, "First Sketch" Red Bird, 2003, ink on tracing paper, 12.75" x 19" x 0"

© Fred Fellows, "Original Sketch" Red Bird, 2003, ink on tracing paper, 12.75" x 19" x 0"

© Terrill Goseyun, The Musician and His Messengers, 2001, pencil on paper, 66.5" x 51.5" x 1.5"

© David Halbach, untitled , 1987, ink and watercolor on paper, 9.75" x 7.75" x 1"

© David Halbach, Apache Wells, n.d., ink on paper, 11.5" x 15.5" x 1.25"

© George Hallmark, Mission San Jose, Texas (Study), 2008, pencil on paper, 24" x 19" x 0", Gift of George Hallmark

© Tom Red Owl Haukaas, untitled, 1997, colored pencil and ink on paper, 16" x 46" x 1.5", Gift of Marty and Julie Klaper

© Donna Howell-Sickles, 39144, pastel on paper, 24" x 18" x 0"

© Donna Howell-Sickles, 39150, pastel on paper, 24" x 18" x 0"

© Donna Howell-Sickles, Untitled, 2014, , 0" x 0" x 0", Gift of the Artist

© Ned Jacob, Native American on Horseback, n.d., ink, 18.5" x 16.25" x 1", Ken and Beth Bowser

© Joseph Imhof, Taos Maiden/Taos Watercarrier, ca 1920, pencil, 26.5" x 21.5" x 1", Gift of Gabe Starace

© Dennis Karchner, Chief Tosh-A-Wah, 2004, pencil, 17" x 14" x 1", Gift of Denny Karchner

© Denny Karchner, Horse Capture, 2005, pencil on paper, 27.25" x 21.25" x 1.5", Gift of Denny Karchner

© Morton Künstler, Sketch, 2003, pencil on paper, 32.5" x 26.75" x 0"

© Morton Künstler, Sketch, 2003, pencil on paper, 32.5" x 26.75" x 0"

© Morton Künstler, Midewiwin Ceremony of the Ojibway, study, 1976, charcoal, 24" x 30" x 1"

© Michael C. Poulsen, Before White Man (Sketch), n.d., pencil, 8" x 11" x 0", Gift of M. C. Poulsen

© Michael C. Poulsen, Chief Joe (Sketch), n.d., pencil on tracing paper, 14" x 11" x 0", Gift of M. C. Poulsen

© Alfredo Rodriguez, Study for "The Wind Beneath Their Wings", 2000, pencil, 16" x 20" x 1.5", Gift of Mr. Alfredo Rodriguez

© Robert 'Shoofly' Shufelt, Thistle Tank, 1997, graphite, 35.5" x 43" x 2.5", Gift of Anne B. Eldridge

© Benjamin E. Shute, Indian with Bolo, n.d., Brown Conte crayon, 22" x 18" x 0", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Study for Indian in Finery, n.d., Casein, pencil, ink, 21" x 18" x 0", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Indian with Bow, n.d., Ink and white gouache, 23" x 21" x 0", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Striking Eagle, n.d., Brown pencil, 26" x 19.5" x 0", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Kneeling Indian with Rifle, n.d., Charcoal drawing, 28" x 23" x 1", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Indian with Buffalo, n.d., Charcoal drawing, 25" x 22" x 0", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Indian In Full Headdress, n.d., Ink and Charcoal, 24.5" x 20.5" x 1.5", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Profile of Indian, n.d., Red Conte crayon, 19.25" x 15.5" x 0.5", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Cowboy, 1981, Graphite, 22" x 18.5" x 0", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Tosh-a-Wah (Silver Brooch) Comanche, 29905, Black Chalk, 20.5" x 16.5" x 0", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Falcon, n.d., Graphite, 23" x 19" x 1", Gift of Beatrice Plummer Potts Woodruff

© Benjamin E. Shute, Bald Eagle with Prey, n.d., Graphite, 20.5" x 17.5" x 0", Gift of Beatrice Plummer Potts Woodruff

© Donald Spaulding, The Flanker "sketch", 1982, pencil on paper, 23.37" x 18.5" x 2"

© Donald Spaulding, Studies for "The Trail Ahead", 2001, pencil on paper, 4.5" x 9" x 0", Gift of Don Spaulding

© Donald Spaulding, Studies for "The Trail Ahead", 2001, pencil on paper, 4" x 9" x 0", Gift of Don Spaulding

© Donald Spaulding, Studies for "The Trail Ahead", 2001, pencil on paper, 6.37" x 9" x 0", Gift of Don Spaulding

© Donald Spaulding, Studies for "The Trail Ahead", 2001, oil on masonite, 6.5" x 6.5" x 0", Gift of Don Spaulding

© Verne Tossey, Ridin Through (Preliminary color sketch), n.d., pencil and oil, 12" x 14" x 1.5"

© Verne Tossey, The Kiss (Preliminary Color Sketch), n.d., pencil and oil, 12" x 14" x 1.5"

© Verne Tossey, Preliminary Color Sketch "A Cowboy's Solitude", n.d., oil, 14.5" x 15" x 1.5"

© Andy Warhol, Annie Oakley: Cowboys and Indians, 1986, Graphite on HMP paper, 31.5" x 23.75" x 0"

© Burl Washington, Down from the High Country, n.d., pencil on paper, 0" x 0" x 0", Gift of Burl Washington

© Burl Washington, We were always there, n.d., pencil on paper, 0" x 0" x 0", Gift of Burl Washington

© Tony Weldon, The Watcher, 2000, pencil, 33.5" x 30" x 1", Gift of Tony Weldon

© Kim Douglas Wiggins, Eve of St. Francis (sketch), 2003, ink, pencil on paper, 6" x 9.5" x 0"

© Kim Douglas Wiggins, Eve of St. Francis (sketch), 2003, ink, pencil on paper, 6" x 9.5" x 0"

© Kim Douglas Wiggins, Eve of St. Francis (sketch), 2003, ink, pencil on tracing paper, 9" x 12" x 0"

© Darryl Willison, Hero Boots, 2005, pastel chalk, 32" x 40" x 0", Gift of Darryl Willison/Art Gallery 66, LLC

© Nicholas Wilson, Home of the Desert Rat (Exploratory Sketch on Location, 37681, ink on paper, 10.5" x 14" x 0"

© Nicholas Wilson, Home of the Desert Rat (Final Concept Sketch), 37681, ink on paper, 10.5" x 14" x 0"

© Nicholas Wilson, Home of the Desert Rat (Concept Sketch 1), 37681, ink on paper, 10.5" x 14" x 0"

© Nicholas Wilson, Home of the Desert Rat (Concept Sketch 2), 37681, ink on paper, 14" x 10.5" x 0"

© Nicholas Wilson, Home of the Desert Rat (Concept Sketch 3), 37681, ink on paper, 14" x 10.5" x 0"

© C. Wise, n.d., ink on paper, 17.75" x 13" x 0"

© George Woodbridge, n.d., pen, ink on paper, 15.12" x 10.75" x 0", Gift of Rick Reeves

© R.C. Woodville, The Long Detaching Rings, June 20, 1885, colored ink on paper, 15.75" x 10.75" x 0"

© N. C. Wyeth, Bucking, 1904, colored ink on paper, 9.37" x 6.25" x 0"

© R.F. Zogbaum, Indian Warfare - Discovery of the Village, September 19, 1885, ink on paper, 16" x 10.87" x 0"

© R.F. Zogbaum, A Horse Auction on the Frontier, 1887, ink on paper, 15.87" x 10.5" x 0"

© R.F. Zogbaum, With a Paymaster's Escort, 1887, ink on paper, 16" x 22.62" x 0"