Group portrait with l. to r., Sir H. Dale and Lady Dale, Edgar Hope Simpson, Elinor Mary (younger daughter of Sir H. Dale), Sir William Arthur Stanier (d. 1965) and his daughter, Joan; at wedding of Patricia Lewis and Sinclair Watson

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Group portrait with l. to r., Sir H. Dale and Lady Dale, Edgar Hope Simpson, Elinor Mary (younger daughter of Sir H. Dale), Sir William Arthur Stanier (d. 1965) and his daughter, Joan; at wedding of Patricia Lewis and Sinclair Watson. Wellcome Collection. Source: Wellcome Collection.