 The Scots Gaelic clan seal was inscribed, "S' Riogal Mo Dhream/ Een dhn bait spair nocht", which was interpreted as "Royalty is my race / End do and spare not".The signet was a bloodstone from Loch Lomond, and was sketched by William Williams.Since 1837, MacGregor had been operating a ferry across the Mississippi River between Prairie du Chien, Wisconsin and the present site of McGregor, Iowa.