There are several versions in the Bodley Library, if you want slightly different words. White and Blue are pretty much interchangeable though. Note that there are at least THREE different songs called the White Cockade. One is the common English song often starting like
It was one Monday morning, as I trip'd o'er the moss
the other a Scots song
I met my love in Aberdeen, the Bonniest lad that e'er was seen
The third, in the Bodley, is different again, but not decipherable