Whakaotihia te rerenga e whai ake nei: Ko nga Buchan Barons o Auchmacoy he rangatira rangatira me nga kaitautoko o te Whare o Stuart. Ko Thomas Buchan te tuatoru o nga tama a te rangatira a James Buchan o Auchmacoy, he hoia ngaio i whawhai i France me Holland. I mahi ia i roto i te Douglas's Scots Regiment i whakaarahia mo te kingi o France. I te tau 1686 i whakawhiwhia ia hei koroneela i roto i te ope a te Earl of Mars e James VII o Scotland. I muri mai ka hono atu ia ki a John Graham, 1st Viscount Dundee. Whai muri i te matenga o Raniera i te
I te Pakanga o Killiecrankie i te tau 1689 i tohua a Buchan hei rangatira rangatira mo nga ope Jacobite katoa i Scotland ka riro i a ia tana komihana mai i te kingi i Ireland. I whakawātea a Buchan i te hoariri me tana ope kotahi mano e rua rau. Heoi, i te 1 o Mei 1690 i ohorere ia, i hinga i te kaha o te kawanatanga i raro i te rangatira a Hugh Mackay i te Pakanga o Cromdale. Heoi, i mawhiti a Buchan ka hono atu ki te Clan Farquharson nana nei ia i akiaki kia whakaeke ano ka haere mai ratou i Abergeldie ki nga Mearns. I whakaheehia ia e te Kaiwhakaako o Forbes he kaha te kaha o te hoia eke hoiho, engari i whakamararatia e Buchan ana hoia kia puta ai te ahua o te nui o te maha, a ka hoki a Forbes ki Aberdeen, na reira ka mataku te pa. Katahi ka haere a General Hugh Mackay me ana ope ki te aukati i a Buchan, na reira ka tiimata te rere atu o nga Highlanders i raro i a Buchan.