During this time he studied Italian architecture and antiquities, collecting many items which were sent back to the family home at Woodcote Park in Surrey.

Captain Calvert insisted on retaining fifty percent of the three-pence tobacco duty which was his due under legislation passed in 1727.

Benedict was not impressed, and his younger brother Cecilius wrote to him that family opinion in England was appalled at Captain Calvert's behaviour, and "thinks him mad".

On arrival in Maryland, Ogle wrote to Lord Baltimore that his brother was "much worse than I imagined, and which I believe has not been mended very much by the help of Physik, of which he takes more than anyone I ever knew in my life".

[5] He left an estate worth around ten thousand pounds sterling, a large sum at the time, to his younger brother Cecilius Calvert.