Which preposition to use with rowntree

at Occurrences 1%

The figure for York is placed by Mr Seebohm Rowntree at the slightly lower figure of 27.84.

of Occurrences 1%

On their way thither they took up at York their aged and valued friend Elizabeth Rowntree of Scarborough, who was on the appointment.

Which preposition to use with  rowntree