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'.
Q: Context: His party, which included Dr. George Suckley, John Mullan and Fred Burr, son of David H. Burr, spent most of 1853 moving slowly across the prairie Link Information: George Suckley (18301869) Question: Who was the oldest person in Stevens' party of 1853?
A:
Answer: David H. Burr