Walter Ker of Cessford Scottish warden (1510–1582) Parents Sir Andrew Kerr of Cessford Agnes Crichton Children Agnes Kerr Margaret Ker Thomas Kerr Isobel Kerr Sir Andrew Kerr of Caverton Sir William Ker of Cessford Siblings Catherine Kerr Mark Kerr Margaret Kerr Andrew Kerr Sir William Sinclair of Roslin Partners Isabel Kerr