Kathleen Schmitt Kline interviewed Dan Folz on July 10, 2008, for the People of the Sturgeon: Wisconsin's Love Affair with an Ancient Fish project. Dan Folz, a seasoned fisheries biologist, began his career with the Wisconsin Conservation Department, later renamed the Department of Natural Resources (DNR). Born and raised in Milwaukee, Folz pursued his studies at the University of Wisconsin in Madison. After graduation, he joined the Five Lakes Research Project in Northern Wisconsin and eventually became an area fish manager. His career spanned various locations, including Horicon, Waupaca, and finally, Oshkosh, where he focused significantly on the Wolf River and Lake Winnebago systems. In this interview, Folz recounts his extensive work with sturgeon, highlighting his initial involvement in the 1950s with Gordy Priegel, a prominent research biologist. They conducted early life history studies and population monitoring of Lake Sturgeon. Folz describes the cessation of sturgeon research in the mid-20th century and the subsequent revival in the 1970s when he noticed an apparent increase in sturgeon populations. This observation led to renewed efforts in tagging and monitoring sturgeon, which revealed significant changes in their numbers and spawning sites. Folz details the evolution of sturgeon habitat, particularly the impact of riprap shorelines created through federal soil conservation programs. These efforts inadvertently enhanced sturgeon spawning habitats, increasing from seven known sites in the 1950s to over fifty by the 1970s. He discusses the formation of Sturgeon for Tomorrow, an organization dedicated to sturgeon conservation, and their collaborative efforts with the DNR to learn artificial propagation techniques. The interview covers Folz's experiences in sturgeon propagation attempts, including the challenges faced and lessons learned. He describes the early experimental efforts at private hatcheries and the subsequent shift to the state-run Wild Rose Hatchery. Folz recounts specific incidents, such as holding a female sturgeon for hours to strip her eggs and the innovative methods developed to ensure successful egg fertilization and hatching.