British prime ministers:Palmerston,Chambers,Gladstone
[DOC] [TLE] British Prime Ministers - 1859-1892 - GlobalSecurity.org [PAR] Nov 28, 2015 ... Palmerston became prime minister himself in 1855 when Lord Aberdeen ... 
William Ewart Gladstone, Liberal Prime Minister from 1868-74, 1880-85, .... and 
1895-1902, ranked among Britain's longest-serving prime ministers.