People Sir John Johnston of Caskieben, 4th Bt. peoplepill id: sir-john-johnston-of-caskieben-4th-btSJJOC4B 9 views today 16 views this weekPeerage person ID=487974Sir John Johnston of Caskieben, 4th Bt.BiographyListsAlso ViewedListsSir John Johnston of Caskieben, 4th Bt. is in following listsBy work and/or countryNotable PeersGender:MaleFrom our partnersSponsoredSir John Johnston of Caskieben, 4th Bt.