From the longer Wikipedia page 
Rt. Hon. Lord Claud John Hamilton PC (20 February 1843 – 26 January 1925) was a British Member of Parliament (MP) during the Victorian era, and a noted railway director.
Hamilton served in the British Army, firstly in the Grenadier Guards, and later in the Royal Inniskilling Fusiliers, before turning to political life.
In 1865, he became Conservative MP for Londonderry City until 1868 when he was appointed a Lord of the Treasury in Benjamin Disraeli's first ministry. In 1869, he became MP for King's Lynn until 1880,< for Liverpool from 1880 to 1885, for Liverpool West Derby from 1885 until he resigned his seat in 1888, and for Kensington South from January 1910 to 1918.