Alf Gibson in 1948
Nationaal Archief
<a rel="nofollow" class="external free" href="http://proxy.handle.net/10648/a8b71fe6-d0b4-102d-bcf8-003048976d84">http://proxy.handle.net/10648/a8b71fe6-d0b4-102d-bcf8-003048976d84</a> (cropped)