Your Thomas Coke Kear who married Harriett Pickford is the son of William Kear and Elizabeth (nee Beddis). This William had a brother Richard who is my husbands great great grandfather so that makes us distant relatives.
If you have not got back very far with your tree in England, I can fill in all the gaps you need. Just email me. I am an Archives assistant at the Glos Record Office and have been doing Kear family history for many, many years and have most of the Kear lines back to around 1500.