Cruquius is the latinised version of Kru(y)ckuis. This familiename is probably derived from a sign hanging from the house (this might also be an inn) where the familie lived. It is common to nickname buildings and other structures so that might be the reference to 'octopus' (though I think something like 'spider' would be more appropriate, with a low fog the pumpingstation must have looked like that moving through the (flat) landscape) Matthijs van Nie --