Which preposition to use with contrabandists

of Occurrences 2%

On the right of the picture, a contrabandist of Bilboa enters, upon his mule, and in front of him is an athletic Castilian armed, and a minstrel dwarf, with a Spanish guitar.

at Occurrences 1%

In one of their coves was the Triton's native village, and the home of the Ferragutshunters of black pirates in other days, contrabandists at times in modern days, sailors in all ages, appearing originally, perhaps, from those first wooden horses that came leaping over the foam seething around the promontory.

Which preposition to use with  contrabandists