Joan, wife of Stephen Joseph Waterkeyn?

Trans Nzoia Scrap Book - Suam Sawmill - The Mill was built in 1923 by General Baker-Carr of Suam Estates, and financed by a Belgian family called Waterkeyn. It was run by a turbine off a big furrow from the Suam, and stood near the present bridge over the Suam on the Bugishu mountain road.