Vincent Joseph Dunker (December 6, 1878 – March 11, 1974) was a photographer, inventor and camera manufacturer who began his career in Ste. Genevieve, Missouri in the late 1890s. Dunker built a wide variety of cameras, contact printers, photo enlargers, and photo booths over a period of thirty-seven years. In 1924 he began production of his specialty, long roll film cameras intended for taking photos of high school students for yearbooks and individual sale. By the time Dunker built his last camera in 1961 such annual school photography had become routine in high schools throughout the U.S.
Vincent was born on December 6, 1878 in Highland, Missouri, to Mary Rosella Guyot who had immigrated from France to the United States. Vincent’s father was Henry Dunker Jr. who had been born in Germany. Vincent was baptized at the St. Boniface Church in Perrville, Missouri where his parents resided. After finishing high school, Vincent worked as a blacksmith and carpenter. He then studied photography, obtaining a master’s degree from the Illinois College of Photography in Effingham, Illinois.