Macmillan - 1930 - J.H. Clark, Agent for British Manufacturers - This business was established in 1911 under the name of Vialou and Clark, which was continued until 1921, when one of the partners, Mr A. Beauchamp Vialou retired [returned to England?]. It then assumed the name of J.H. Clark. That gentelman died in 1922, and the concern has since been conducted by his son, Mr Henry Vialou Clark, called after his maternal grandfather, Mr Henry Vialou who was in partnership with Mr A. Beauchamp Vialou.

Gazette 12/1/1921 - Dissolution of Partnership between Alfred Beauchamp Vialou and John Henry Clark carrying on business as General Merchants and Agents at Nairobi …. And …. London under the style or firm of 'Vialou and Clark'.

1939 England and Wales Register living in East Barnet, Herts. as 'wholesale merchant retired', with wife and dau.