The son of
John Gellibrand Hubbard, 1st Baron Addington, he succeeded the Barony on the death of his father. He held the office of
High Steward of
Buckingham. He was educated at
Radley College, and graduated from
Christ Church, Oxford, with a
First B.A. in 1865, and with an M.A. in 1866. In 1863, he was commissioned into the 3rd Buckinghamshire Rifle Volunteer Corps (after 1875 amalgamated into the 1st Buckinghamshire Rifle Volunteers). He was promoted
lieutenant in 1871,
captain in 1887,
major and
lieutenant-colonel in 1890, and
colonel in 1895. He resigned his commission in February 1900. ==Family==