1. Mannes Glenn H Architect 800 Douglas Ave, Yankton, SD 57078 Coordinate: 42.8766,-97.39142 Phone: (605) 665-1852
2. Marquis X Erickson Architect 334 Walnut St, Yankton, SD 57078 Coordinate: 42.87096,-97.39331 Phone: (605) 664-0232