 Bradstreet was sent on a number of diplomatic missions , dealing with settlers , other English colonies , and the Dutch in New Amsterdam . In 1650 he was sent to Hartford , Connecticut , where the Treaty of Hartford was negotiated to determine the boundary between the English colonies and New Amsterdam . In the following years he negotiated an agreement with settlers in York and Kittery to bring them under Massachusetts jurisdiction . 
 Bradstreet was sent on a number of diplomatic missions , dealing with settlers , other English colonies , and the Dutch in New Amsterdam . In 1650 he was sent to Hartford , Connecticut , where the Treaty of Hartford was negotiated to determine the boundary between the English colonies and New Amsterdam . In the following years he negotiated an agreement with settlers in York and Kittery to bring them under Massachusetts jurisdiction . 
Bradstreet was sent on a number of diplomatic missions , dealin w/ settlers , other English colonies , and the Dutch in New Amsterdam . In 1650 he was sent to Hartford , Connecticut , where the Treaty of Hartford was negotiated to determine the boundary between da English colonies and New Amsterdam . In tdafollowing years he negotiated an agreement wiw/ettlers in York and Kittery to bring them under Massachusetts jurisdiction .