WMO, Commission for Climatology (CCl) - London, 1957
Some identities, including Canadians - see Centre Enlargement below
Centre Enlargement
Top row centre (number 4 from left): Morley K Thomas
Middle rows: all unknown
Front row (l to r) (seated): Clarence Boughner, RG Veryard (UK), ?, Warren Thornthwaite (USA - President), K Langlo (Norway), O Ashford (UK).