The swans Snowdon photographed in 1965 belonged to Lady Galway whose family had kept a swannery for over 300 years at the time. Today the Galway Swannery at Abbotsbury in Dorset is owned by the only surviving daughter of the 9th Viscount Galway, Charlotte Townsend. She is the only person in Britain other than the Queen entitled to own swans.

(Source: littleaugury.blogspot.com)