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Presumably successor to Mason and Weyman
1889 Partnership changed. '...the Partnership heretofore subsisting between us the undersigned, James Edwardes Weyman and Walter Britten Johnson, both of Guildford, in the county of Surrey, carrying on business there as Engineers, Ironfounders, and Agricultural Implement Agents, under the style or firm of Weyman and Johnson, has been dissolved, by mutual consent...'
later became Weyman and Co