Over a period of nearly five decades, Florence Cline Lister and her husband, the late Robert Hill Lister, were a team whose light shown brightly over the ramparts of Southwest archaeology. Almost always referred to by others as "Bob and Florence," "Florence and Bob," or, simply, as "the Listers," their efforts toward unravelling mysteries of the region's prehistoric and colonial period past, in writing such historic accounts as that of the Mexican state of Chihua­hua, or in chronicling the lives of such Southwestern archaeologists as Earl Morris were nearly always a joint enter­prise. As with Hattie and Comelius "Burt" Cosgrove before them, and, further afield, Will and Ariel Durant, their names, like their shared interests, became melded into one.