The son of Pascal St Leger Grenfell and Catherine Anne Grenfell (née Du Pre). Francis Wallace Grenfell was educated at Milton Abbas School in Dorset but decided to leave school early.
Grenfell Road, which runs through North Kensigton was named for Grenfell; the road later lent its name to Grenfell Tower.
NPG Ax5474 © National Portrait Gallery, London.