▁ 1 9 9 9 , ▁the ▁parent ▁company ▁of ▁G PT , ▁G EC , ▁renamed ▁itself ▁Mar con i . ▁ ▁Personal ▁life ▁On ▁ 2 9 ▁April ▁ 1 9 5 2 ▁he ▁married ▁De ird re ▁Kath le en ▁Water house ▁( b ▁ 1 9 2 9 - 3 0 ) ▁and ▁they ▁had ▁one ▁son ▁and ▁one ▁daughter . ▁The ▁marriage ▁was ▁dissol ved ▁in ▁ 1 9 6 2 ▁and ▁he ▁married ▁Oliv ia ▁Ann ▁Pr att ▁( b ▁ 1 9 4 2 - 4 3 ) ▁on ▁ 2 2 ▁May ▁ 1 9 7 0 . ▁They ▁had ▁one ▁daughter ▁and ▁tw in ▁sons . ▁ ▁In ▁ 1 9 7 1 ▁Clark ▁was ▁kn ight ed ▁for ▁services ▁to ▁exports . ▁He ▁died ▁on ▁ 3 ▁December ▁ 2 0 0 1 , ▁in ▁Barb ados . ▁ ▁See ▁also ▁ ▁P les sey ▁ ▁P les sey ▁System ▁ 2 5 0 ▁ ▁P les sey ▁Code ▁ ▁References ▁ ▁Category : 1 9 2 6 ▁birth s ▁Category : 2 0 0 1 ▁death s ▁Category : Pe ople ▁educated ▁at ▁H arrow ▁School ▁Category : B rit ish ▁chief ▁execut ives ▁Category : K n ights ▁Bach elor ▁Category : Bus iness people ▁awarded ▁kn ighth ood s ▁Category : Ro yal ▁Naval ▁Vol unte er ▁Reserve ▁personnel ▁of ▁World ▁War ▁II <0x0A> </s> ▁The ▁B ▁class ▁as ▁designated ▁in ▁ 1 9 1 3 ▁was ▁a ▁heter ogeneous