The official letters include work concerning the improvement of army uniform, 1856-59 and letters on his award of the Companion of the Bath, 1855. Personal correspondence includes his account of the events leading up to the Battle of Alma and Inkerman, 1854, during the Crimean War. He recounts his time in hospital and being severely wounded at the Battle of Inkerman. Letters also recount his voyage from Southampton to Sevastopol, 1854. Letters also include correspondence with his wife, Lady Louisa Troubridge (nee Gurney) and his children, 1854-67. The family papers had been arranged by a hired researcher prior to being loaned to the museum in 1984.

Administrative / biographical background
Entered the army as ensign in the 73rd foot on 24 January 1834. Promoted to Lieutenant on 30 December 1836 and exchanged into the 7th Royal Fusiliers; serving with the regiment at Gibraltar, the West Indies, and Canada, becoming captain on 14 December 1841 and major on 9 August 1850. Troubridge served with the 7th Royal Fusiliers in the Crimea, 1854. He was in the forefront of the battle at the Alma. On 5 November, at Inkerman, he was field officer of the day, and was posted with the reserved of the light division in the Lancaster battery. Troubridge lost his right leg and left foot as his battery was attacked by Russian guns. He remained with the battery until the battle was over, with his limbs propped up against a gun carriage. Lord Raglan stated that Troubridge, although desperately wounded, acting with the utmost gallantry and composure. Troubridge returned to England in May 1855. He was made CB, aide-de-camp to the queen, and brevet colonel from 18 May 1855. He received the fourth class of the Mejidiye and the Legion d'honneur.