Probably:

Evelyn Sophie Alexandra Walston was married to Patrick Reginald Evelyn Browne in the Church of St. Bartholomew the Great in the City of London, London, England on n26 May 1931.

Wills and Administrations, 1966
Browne, Evelyn Sophie Alexandra, of 7, Campden Hill Square, London W.8, died 16 July 1966. Probate Newcastle-upon-Tyne 19 October to the honourable Sir Patrick Reginald Evelyn Browne, Knight, Edward Michael Andrew Browne, barrister at law, and Alexander Thompson, solicitor.    £117873.

Probably:

Henry David Leonard George Walston was married to Catherine MacDonald Campton in Wilton, New Hampshire, USA on 15 June 1935.

Wills and Administrations, 1991
Walston, the right honourable Henry David Leonard George (Baron), of Selwood Manor, Frome, Somerset, died 29 May 1991. Probate Winchester 15 July £4,924,152.