George H. N. Luhrs Jr. Walter Thalheimer, Ulrich Thalheimer, Emma Thalheimer, Emma Luhrs, Joseph Thalheimer, Joe Thalheimer, Anna Thalheimer, Catharina Luhrs, George H. N. Luhrs, Eva Luke, Mr. Dummel, and Mrs. Dummel at Hole in the Rock; Phoenix, Arizona

George H. N. Luhrs Jr. Walter Thalheimer, Ulrich Thalheimer, Emma Thalheimer, Emma Luhrs, Joseph Thalheimer, Joe Thalheimer, Anna Thalheimer, Catharina Luhrs, George H. N. Luhrs, Eva Luke, Mr. Dummel, and Mrs. Dummel at Hole in the Rock; Phoenix, Arizona, CP_LFPC_217. Greater Arizona Collection. https://aspace.lib.asu.edu/repositories/2/digital_objects/8355 Accessed June 26, 2026.