Details from David Asprey ....
ON 181300 62grt 71.5 x 15.5 x 7.3ft
built in 1906 by Cox & Co, Falmouth (Yd 118)
C2cy Cox & Co
31 Dec 1906 delivered to War Department as target-towing tug GORDON for service at Sheerness
1947 John H Whitaker (Tankers) Ltd, Hull as ACKWORTH
c1965 scrapped

and a Charlie Hill photo of her on the Ouse in 1958