I have managed to verify that James Lomax-Simpson was, indeed, the designer of Unilever House.   His daughter confirmed last night that her grandfather, an architect in Bolton, had made friends with the original Lord Leverhulme who was godfather to her father.   Born in 1882, Lomax-Simpson trained as an architect in Liverpool, worked for the Wolverhampton Corrugated Iron Company, before becoming Head of the Architect’s Department of Lever Brothers in 1910 and joining the Board as a partner in 1917.   He was responsible for much of the design of Port Sunlight as well as a castle for Lord Leverhulme in Stornaway.   So, it was natural that he would do the design of the company’s grand new headquarters on the Embankment, while leaving it to Burnet, Tait and Partners to execute it.