Joseph Knaffl (9. října 1861 Wartburg, Tennessee, USA – 23. března 1938 Knoxville) byl americký výtvarný a portrétní fotograf působící v Knoxville, Tennessee na konci 19. a počátku 20.
Joseph Knaffl (October 9, 1861 – March 23, 1938) was an American art and portrait photographer, active in Knoxville, Tennessee, during the late 19th and early 20th centuries.
Theodore M. Schleier (April 20, 1832 – December 13, 1908) was a Prussian-born American photographer, inventor, and diplomat, active primarily in the southeastern United States in the latter half of the 19th century.
Knaffl wanted to prove the still-young science could be an art every bit as painting. Most of his work was in portraits, but the young man tried to few other art scenes, tableaux, some of them with religious themes.