|Sources||Port Bannatyne 1820 Thomson
Port MhicEamailinn: Mac an Tàilleir
“The port is named after the Bannatyne family who held Kames for centuries.” Markus, Place-names of Bute, 427
“When the vowel following Mac in a surname is slender its influence makes it slender in Arran in two or three instances, as Maic Eamailinn, Englished Bannatyne” Robertson, Scottish Gaelic Dialects, 275
However Black says under MacAomlinn: “In Arran M’Amelyne, M’Omelyne, M’Emlinn is the Gaelic patronymic of the Bannatynes of Kames”.
Although the Gaelic form has no historical authenticity, it is now established.