Final answer:
The question appears to pertain to characters Isabel and Curzon from a fictional story set against the backdrop of a historical event. As the provided reference information does not mention these characters, an accurate answer cannot be provided without the specific book title or source material. Students should refer back to the relevant text for the answer.
Step-by-step explanation:
The student's question about Isabel finding Curzon after the defeat of American soldiers appears to reference a historical event, likely related to a specific battle or military campaign. However, the details provided from the historical excerpts do not directly answer the question as they do not give information about Isabel and Curzon, which suggests the scenario is from a literary or fictional context rather than a strict historical account.
Based on the historical contexts provided in the reference information, it's likely that the characters Isabel and Curzon could be from a novel set during the American Revolutionary War or another significant military conflict. Literary works often include narratives around historical events, such as Washington's retreat, the British taking over Americans.