In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

Passage: Nelson was originally called Ffos-y-Gerddinen ("ditch of the rowan"), a relatively flat piece of land at the southern extremity of the Taff Bargoed Valley to the south of the hamlet of Llancaiach. It existed on a drovers trail from the South Wales coast towards Merthyr Tydfil and onwards to Brecon and Mid Wales, where an enterprising man built a coaching inn that he called Nelson, possibly after Admiral Lord Nelson and his victory at the Battle of Trafalgar. Had it not been for the development of the South Wales coalfield, Nelson would have remained just a coaching inn surrounded by fields. When the Llancaiach Colliery was developed from 1811, it created a need for new housing for the workers and heavy transport for the coal, which spilled onto the flat lands below the colliery.
 Link Information: The Battle of Trafalgar (21 October 1805) Answer: 21 October 1805
In what year did Lord Nelson claim victory at the Battle of Trafalgar?

Passage: Calvin Coolidge (born John Calvin Coolidge Jr.; ; July 4, 1872 – January 5, 1933) was an American politician and lawyer who served as the 30th president of the United States from 1923 to 1929. A Republican lawyer from New England, born in Vermont, Coolidge worked his way up the ladder of Massachusetts state politics, eventually becoming governor of Massachusetts. His response to the Boston Police Strike of 1919 thrust him into the national spotlight and gave him a reputation as a man of decisive action. The next year, he was elected vice president of the United States, and he succeeded to the presidency upon the sudden death of Warren G. Harding in 1923. Elected in his own right in 1924, he gained a reputation as a small government conservative and also as a man who said very little and had a rather dry sense of humor.
 Link Information: none Answer: none
Was Massachusetts' population larger than Vermont's the year Coolidge was born?

Passage: Following stints with the Dixie Melody Boys and Trav'lers Quartets, he joined J. D. Sumner and the Stamps Quartet in 1966. In 1972, he traveled briefly with the Blackwood Brothers, thereafter joining the Oak Ridge Boys as a member of The Mighty Oaks Band. Brown also played piano for Elvis Presley. He toured with the TCB Band for much of Presley's final two years and was a part of the 1976 "Jungle Room" recording sessions at Graceland. In 1979, he joined Emmylou Harris's backing band, the Hot Band, taking over for former Presley sideman Glen D. Hardin. Brown stayed with Harris until 1981. Later, he became a session musician in Nashville and toured with acts such as Rosanne Cash.
 Link Information: Glen Dee Hardin (born April 18, 1939) Answer: 40

How old was Glenn d. Hardin when Tony Brown replaced him on the Hot Band?