Wool Week is upon us, posters have been printed, the annuals (thousands) are being packed and sent off, and visitors (a lot) have arrived at the Shetland Museum & Archives. Time to think about sheep and sheepie things. In the Archives, towards the end of the Thomas Irvine of Midbrake papers, there’s small stash of sheep information. But first, a word or two about Thomas Irvine.