Horace Sowers Kephart was born in Pennsylvania in 1862 and spent much of his childhood in Iowa. He later studied at Lebanon Valley College and Boston University before beginning a career as a librarian. After working at Yale and spending time studying in Europe, he eventually became director of the Mercantile Library in St. Louis. Outside the library, Kephart was an enthusiastic hunter, shooter, camper, and student of outdoor equipment. He contributed to sporting publications and followed the work of other prominent outdoor writers, including George Washington Sears, better known by the pen name Nessmuk. Sears had spent years promoting lightweight equipment and practical woodcraft, an approach that would also become central to Kephart’s own writing.

Kephart’s knife began taking shape while he was still living in St. Louis. In 1897, readers of the sporting magazine Shooting and Fishing were discussing small axes suitable for hunters and campers. Among the makers mentioned was Colclesser Brothers of Eldorado, Pennsylvania, a small edge-tool manufacturer with roots reaching back to the early nineteenth century. Kephart was familiar with the company’s axes and soon approached it about producing a hunting knife based on his own design.

The accompanying illustration showed a knife with a five-inch blade, although Kephart suggested that a four-inch version would be better suited for canoeists, fishermen, and hunters after smaller game. He had experimented with hunting knives for years and wanted something capable of handling game preparation and ordinary camp chores without the bulk of the oversized hunting knives then in fashion. Just as importantly, the edge needed to be maintainable with the simple sharpening equipment carried into the woods.

Colclesser soon began offering the design commercially as the “Kephart Sheath Knife.” Surviving advertising described it as a knife designed by the practical hunter Horace Kephart and offered two sizes. A version with a four-inch blade and sheath sold for $1.75, while a five-inch model with sheath cost $2.00.

His preferred knife was roughly eight and a half to nine inches overall, with the blade and handle each measuring about 4.25 to 4.5 inches. The blade was around an inch wide and only about one-eighth inch thick at the spine, while the complete knife weighed roughly four ounces. The point sat near the centerline, with enough curve along the edge for skinning and slicing without ending in the narrow point Kephart disliked on many hunting knives.

The handle was oval and large enough to fill the hand without sharp corners or deep grooves. It widened toward the butt and narrowed as it approached the blade, with only a small projection behind the cutting edge instead of a substantial guard. Kephart had little use for an upper guard and felt that it could interfere with some cutting positions. The uncomplicated handle also allowed the knife to move easily between different grips during carving, slicing, food preparation, and game processing.

Kephart paid just as much attention to heat treatment. He wanted a blade hard enough to hold an edge while cutting wood and processing game, but not so hard that the edge became brittle. In his writing, he described preferring an edge that might turn slightly under a hard impact rather than one that would break away in chips. A rolled edge could be straightened and resharpened with simple equipment, while a badly chipped blade could be much more difficult to repair in camp.

The knife he described in Camping and Woodcraft was not necessarily the only sheath knife he carried during his life. Kephart wrote that the heavily used knife before him while he worked on the book had been made by a “country blacksmith.” Earlier records clearly document the knife Colclesser Brothers produced from his design in 1897 and the company’s later advertisement of the Kephart Sheath Knife, but Kephart appears to have used more than one knife as his preferences continued to develop.

Kephart’s books remained in circulation, but original examples of the knife became scarce. One of the best-known surviving knives is preserved among other Kephart material at Western Carolina University. The university’s Hunter Library and Mountain Heritage Center maintains a large collection of Kephart photographs, documents, equipment, and personal objects.

Kephart's knife shows extensive wear from years of use and repeated sharpening. Its altered blade makes it difficult to determine exactly how the profile looked when new, leaving period illustrations and other surviving examples to fill in some of the missing details.

For much of the twentieth century, the Kephart remained better known among readers of old woodcraft literature than among the wider knife-buying public. Interest began growing again as traditional camping, bushcraft, and historical outdoor equipment found new audiences. Custom makers revisited the pattern first, followed by larger manufacturers that adapted it to contemporary materials and production methods.

Over time, “Kephart” became the name of a broader family of outdoor knives rather than one strictly defined pattern. Some makers stayed close to the early Colclesser knives, while others introduced thicker stock, synthetic handle materials, square spines for striking ferro rods, modern steels, and contemporary sheath systems.

ESEE introduced the PR4 in 2018, designed by Patrick Rollins and influenced by Kephart’s traditional camp knife. It kept the compact proportions and relatively thin blade stock of the original pattern while adding Micarta handle scales and a sharpened 90-degree spine. Condor Knife & Tool and numerous custom makers also produced Kephart-inspired knives in different sizes, steels, and configurations as the pattern became increasingly common within the modern bushcraft market.