From Genealogical Dictionary of Maine and New Hampshire (on Ancestry.com)

Tetherly.William Tetherly, mariner, of Northam, co. Devon, m. 1st 1618-9 Christian Thorne, 2d 1636 Mary Harges. His will, 30 Apr.–9 Dec. 1651, ment. among his ch. sons Gabriel (bp. 4 Jan. 1622-3), William and John, and named w. Mary exec.