Francis Arthur Freeth
... that Francis Arthur Freeth developed ways of purifying TNT during World War I, and came out of retirement to do secret research for British special forces in World War II?
... that <b id="mwAcc"><a href="./Francis_Arthur_Freeth" id="mwAcg" rel="mw:WikiLink" title="Francis Arthur Freeth">Francis Arthur Freeth</a></b> developed ways of purifying <a href="./TNT" id="mwAck" rel="mw:WikiLink" title="TNT">TNT</a> during World War I, and came out of retirement to do secret research for British special forces in World War II?