Acaster Turk Mare, a foundation mare of Family 70, was the dam of the full siblings Williams's Squirrel (b c 1719 Lister's Snake), Easby Snake (b c 1725c), Molly in the Moss (b f 1721) and Sister to Squirrel (ch f 1723). Squirrel and Easby Snake were both useful stallions, the latter getting Mother Western, the 2nd dam of Eclipse (ch c 1764 Marske). Molly in the Moss placed 2nd in the Royal Plate for mares at Hambleton in 1726, won by Bald Charlotte (ch f 1721 Old Royal). Sister to Squirrel ran 9th in the Royal Plate at Hambleton in 1728 [Orton:23] which was won by Mr Newstead's Miss Pert (b f 1723 Thoulouse Barb) and was later the dam of Cuthbert Routh's Simon (ch c 1733 Bartlet's Childers) who covered at Catterick.