[2][5] He was Road Commandant of the Khyber Pass and served in the Second Anglo-Afghan War of 1878–80, for which he was mentioned in dispatches and made a Companion of the Order of the Bath (CB).

[3][2] An attack of fever brought Lockhart to England in 1888, where he was employed as Assistant Military Secretary for Indian affairs (at Horse Guards); but in 1890 he returned to India earlier than planned to become Commander-in-Chief Punjab Command with the rank of major-general.

He took up residence in "Treasury Gate", Fort William, India and at "Snowdon" in Simla when the government migrated to the hill station for the summer months.

His funeral occurred the following day and the service was taken by James Welldon the Bishop of Calcutta, and former headmaster of Harrow School.

[1] A private collection funded a fine memorial by George Frampton in St Giles' Cathedral, Edinburgh and soldiers and their families paid for the construction of an obelisk in Roomi Park, Rawalpindi (now Pakistan).