Question: What type of details about alexander henry -lrb- gunsmith -rrb- can be gathered from the following bio? Bio: alexander henry -lrb- 1818-1894 -rrb- was a scottish gunsmith , based in edinburgh , and designer of the henry rifling and barrel used in the martini -- henry rifle . he submitted a rifle to the competition organised by the british government for a replacement to their existing snider -- enfield service weapon . ironically , his breech action and barrel were both judged to be the best -lrb- and won the prizes -rrb- but the war office did not adopt its action , preferring that of von martini , but did adopt its seven-grooved barrel rifling scheme . henry is a fascinating character -- from a number of personal tragedies in his family , to some disastrous other business ventures , but he also was the '' first volunteer '' -- the first signatory to the creation of the queen 's edinburgh rifle volunteers , a jp , freemason and edinburgh town councillor . in 1872 he was appointed '' gun and rifle manufacturer to his royal highness the prince of wales '' . he and his wife isabella had nine children : eliza mackay , jemima janet , james alexander -lrb- accidentally shot and killed by his father in 1860 , aged 12 -rrb- , william orchardson -lrb- died aged 2 -rrb- , isabella , a stillborn child , alexander -lrb- alick -rrb- , alice mills -lrb- died aged 1 -rrb- and john chave luxmore henry . when alexander henry died , he left the business to alick and john . his grave is in warriston cemetery , edinburgh
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