Gabriel Porterfield and his wife Jean Maxwell had a conjunct liferent of 'Halketh' and its loch on a charter of Robert Montgomerie of Hessilhead, dated 24 May 1634.Paterson, Page 236 In 1648 the loch was held by John Porterfield of Hapland, as heir to his father Gabriel.Paterson, Page 237 The loch was later inherited by his brother Alexander on 5 October 1653. The lands and Loch of Halket later lay within the Barony of Robertland as recorded by a charter under the Great Seal of 8 July 1676.Dobie, Page 205 Blaeu's map of 1654, based on Timothy Pont's work of the late 16th century, shows a 'Halkhead Loch', with a single property, Halkhead, nearby.
