Attendees at the First International Congress of Entomology at the Musee Royal D'Histoire Naturelle, Brussels 1910. Bagnall is standing on the furthest left hand side of the picture. Karl Jordan, Congress organiser, is standing modestly in the middle of the second row from the back. A copy of the Congress publication with a key to identify the participants in the picture can be found at Biodiversity Heritage Library (Severin 1912).