Which preposition to use with vansittart

after Occurrences 1%

The bay was named Vansittart after the late Chancellor of the Exchequer.

for Occurrences 1%

On December 19th both vessels left the Tamar; the Vansittart for Flinders Island, to land the unfortunate natives; whilst the Beagle crossed the strait to Wilson's Promontory, anchoring behind an island two miles long, trending north and south, with a hollow in the centre, forming a saddle, the highest part being 450 feet high.

Which preposition to use with  vansittart