Which preposition to use with crumps

at Occurrences 1%

Lantern Lecture by Captain Crump at Thiepval Château.

behind Occurrences 1%

A German shell, soaring over, burst with a loud crump behind the trench.

for Occurrences 1%

or would it, after all, turn out to be only a false alarm, raised by the boy Crump for the sake of the promised shilling?

into Occurrences 1%

Arcane had a hard time of it to keep the brush from pulling George and Melissa off of Old Crump into the water.

Which preposition to use with  crumps