By the 20th century, there was little traditional long rifle making left except in isolated pockets in the Appalachian mountains. Few men were left who could entirely build a long rifle. Popular interest in shooting as a sport as well as the sesquicentennial of the United States' independence from Britain in 1925-33 spurred interest in the origins of the long rifle. One of the first evidences of this renewed interest was the seminal work in 1924 by Capt. John G.W. Dillin "The Kentucky Rifle". Early 20th century pioneers of long rifle culture were Walter Cline, Horace Kephart, Ned Roberts, Red Farris, Hacker Martin, Bill Large, Jack Weichold, Ben Hawkins, D.C. Addicks, L.M. Wolf, Dave Taylor, Win Woods, and Alvin Wagner.