The name is territorial and comes from the lands of Orrock ... and the family is on record from the thirteenth century. Alexander Orrock of Sillebawbe was mint-master in 1538, and 'bawbee', originally a coin worth three Scots pence, may have taken its name from the lands which he held. Orrock [NT 220881] was held by the family from the middle of the thirteenth century for some 400 years. They had a castle or mansion, from which a date stone of 1704 survives, but the lands were sold in the 1750s to the Beatons and the Orrock family moved to Aberdeenshire" (M. Coventry, Castles of the Clans. Musselburgh, 2008, p. 470.)