[1] In 1679, he entered Trinity College, Dublin but he left almost immediately, possibly on account of contention with non-conformist religious opinions.
He was released on 12 February 1690, went to Ireland, served in the Jacobite Army at the Battle of the Boyne, and then entered French service in the Galmoye Regiment.
[2] In 1702, Hooke entered into communication with the Duke of Marlborough; the next year, he was given a command in the Sparre Regiment, and served in the War of the Spanish Succession with the French Army at Flanders and the Moselle.
In August 1705 he led a mission to the Scottish Jacobites, and in 1706 he requested French naturalisation, before taking part in the Battle of Ramillies.
Instead, in 1711 he went to Dresden on a diplomatic mission on behalf of Louis XIV to Augustus II, but this negotiation was ineffective given the Treaty of Utrecht.
[2] The Jacobite rebellion of 1715 did not seriously involve Hooke; he was in touch that year with John, Earl of Stair KT, British Ambassador to Paris, although possibly only to gather information.