i have irish and scottish ancestors and i had no idea about sikh tartan, thank you for your enlightening post! now that i search more i also find that many native american people have worn turban in their cultures. i give here a couple quotes and picture...
{1880) "The next article of the man's ordinary costume is the turban. This a remarkable structure and gives to its wearer much of his unique appearance. At present it is made of one or more small shawls. These shawls are generally woolen and copied in figure and color from the plaid o£ some Scotch clan. They are so folded that they are about 3 inches wide and as long as the diagonal of the fabric. They are then, one or more of them successively, wrapped tightly around the head, the top of the head remaining bare; the last end o£ the last shawl is tucked skillfully and firmly away, without the use of pins, somewhere in the many folds of the turban. The structure when finished looks like a section of a decorated cylinder crowded down upon the man's head. I examined one of these turbans and found it rather a firm piece of work, made of several shawls wound into seven concentric rings. It was over 20 inches in diameter, the shell of the cylinder being perhaps 7 inches thick and 3 in width. This headdress, at the southern settlements, is regularly worn in the camps and sometimes in the hunt. While hunting, however, it seems to be the general custom for the warriors to go bareheaded. At the' northern camps, a kerchief bound about the head frequently takes the place of the turban in everyday life, but on dress or festival occasions, at both the northern and southern settlements, this curious turban is the customary covering for the head of the Seminole braves. Having no pockets in his dress, he has discovered that the folds of his turban may be put to a pocket's uses..." MacCauley, 1887
(ca. 1895) "It is worn almost constantly; and is made impromptu from shawls or colossal handkerchiefs wrapped round and round the head and then secured in shape by a band, often made of beaten silver which encircles the whole with brilliant effect. With young braves the more important the occasion, the more enormous the turban." Moore-Willson, 1914
"Their turban is made of a woolen shawl, sometimes covered with a piece of calico and even silk when they wish to be particularly gorgeous in their attire. On one occasion I saw an Indian by the name of Billy Bowlegs wearing a turban encircled by a band of metal (probably tin). The older Indians usually wear a red woolen turban made by widening a shawl around their heads, which they fasten by tucking the ends skillfully away beneath the folds without the use of pins. As a rule they do not wear the turban when hunting...except in the very hottest weather." Cory, 1895