Gerardus Siderius
Gerardus Gijsbertus Siderius was a Dutch canoeist who competed in the 1936 Summer Olympics.
In 1936 he and his partner Henk Starreveld finished fifth in the K-2 10000 metres competition.
Gerardus Gijsbertus Siderius was a Dutch canoeist who competed in the 1936 Summer Olympics.
In 1936 he and his partner Henk Starreveld finished fifth in the K-2 10000 metres competition.