Scions of the current chief's Condie branch in the 19th and 20th centuries included an Admiral, an Ambassador, a Chairman of the Hon. E. India Company, a Deputy Chairman of HSBC, a Chief Justice of Ceylon, two Generals, a few knighthoods, a notable author and two MPs.
The Gask branch produced Scotland's greatest poetess, Carolina, latterly Lady Nairn and then in the female line and going by the name of Kington-Blair-Oliphant or Blair-Oliphant, has produced an Air Vice-Marshal and two composers in film and television.
The Rossie branch produced a Postmaster General of Scotland and the founder of the Canadian National Ballet School.
The Kellie branch produced Margaret Oliphant, the author.
The Bachilton Oliphants were large landowners in Fife and are one of the earliest offshoot branches.
Other branches of Clan Oliphant (yet to be mapped definitively) have produced a US General, an reknowned scientist who was in the team which split the atom and a reknowned author and journalist: http://en.wikipedia.org/wiki/Thomas_Oliphant, whose wife is Susan Spencer, an NBC news anchorwoman: http://tv.yahoo.com/48-hours-mystery/show/28487/photos/2.