Gliddon served as Boy Second Class on the HMS
Forward, a British gunboat under the command of
Lieutenant Commander Horace Lascelles. In April 1863,
Lascelles sailed to Lamalcha village on
Kuper Island to capture suspected murderers
Un-wahn-rick and
Pallrick. When the village's chief refused to board the ship, the
Forward opened fire on the village. The villagers returned fire with muskets. One of the shots hit Gliddon in the head while he was acting as the powderman for
the ship's pivot gun; this made him the only British Serviceman killed in action in
B.C. Three Lamalcha men:
Sha-nal-sa-luk,
Ot-cha-wun and
Qual-a-tutlm, were later tried and hung for his death.