"WESTRUTHER, a parish, lying debateably between the Lauderdale and the Lammermoor districts of Berwickshire. It contains the post-office village of Westruther and the village of Hounslow. It is bounded on the north by Cranshaw; on the east by Longformacus and Greenlaw; on the south by Gordon and Legerwood; and on the west by Legerwood and Lauder ... The parish of Westruther was formed in the 17th century by uniting to the parish of Bassendean the lands of Westruther and the ancient territory of Spottiswoode, which had belonded to the parish of Gordon"
From the Imperial Gazetteer of Scotland, edited by John Marius Wilson, 1868.