The Blue Course at Neumann Golf Club represents the work of Bill Diddel, a Cincinnati-based architect who designed numerous courses throughout Ohio and the Midwest during the mid-twentieth century. Diddel, who learned his craft under the tutelage of William Langford, developed a reputation for creating playable yet strategic layouts that worked naturally with existing terrain. His designs typically feature thoughtful green complexes and routing that takes advantage of natural landforms rather than imposing dramatic artificial features. Neumann Golf Club sits in the Cincinnati area, where the topography generally offers rolling terrain characteristic of southwestern Ohio. Courses in this region often incorporate elevation changes and tree-lined corridors, with design strategies that emphasize accurate shot placement over pure distance. Diddel's approach to golf architecture favored strategic options for players of varying skill levels, with hazards positioned to reward well-considered play rather than simply penalize mistakes. The Blue Course serves as one of the layouts at Neumann Golf Club, which operates as a private facility in the Cincinnati golf community. Like many clubs in the region, it provides a traditional country club experience for its membership. Diddel's work from this era has maintained relevance through the decades, as his fundamental design principles—sound routing, appropriate challenge, and integration with natural landscape—continue to provide enjoyable golf without requiring extensive modernization.