Career
Egerton was commissioned into the 89th Regiment of Foot. He was appointed Adjutant of his Regiment in 1836. He served in the Crimean War and was decorated with the Order of the Medjidie (5th Class).
He features in a photograph taken in the Crimea by Roger Fenton (1855 - Officers & Men of the 89th Regiment).
He was appointed Deputy Adjutant-General in 1866 and Military Secretary in 1871. He was also Colonel of the 89th Regiment of Foot.