Complex sentence: This later recognition and inclusion in historical records created by the trading company is a rare occurrence for a native person, even if she remained unnamed in documents: when her travels were recorded, she was identified repeatedly as the'Slave Woman'.
Split into simpler sentences: This later recognition and being included in historical records created by the trading company is a remarkable accomplishment for a native person, although she remained unnamed in their documents. Her travels were well documented and she was identified repeatedly as the'Slave Woman'.