Detailed Instructions: In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Problem:Context: He was aide-de-camp to Lord Cornwallis and was sent home by him with the despatches of the Battle of Camden on 16 Aug. 1780 Link Information:

Charles Cornwallis, 1st Marquess Cornwallis, (31 December 1738 Question: How old was Lord Cornwallis the year that he sent Alexander Ross home with the despatches of the Battle of Camden?
Solution:
Answer: 42