Detail of portrait below...
Above: Johann Zoffany, King George III, ca. 1770
Jamaica, Long Island, 12 Decr 1778
"The British Grenadiers & Light Infantry being cantooned here & always
the fashion in action I applied to be attached to them which was
"The Light Infantry wear a green feather in their Caps & we the
Grenadiers a White one in our Hatts."
[Francis Laye letters (Royal Artillery). National Army Museum mansuscripts 6807-154]