suspect John was s/o John + Margt Cubon -
John Stean 1675 (epis) - d 24 May last;2 unmarried sons Robt + Thomas + dau Isabel (unmarried) jt admrs;wife alive; married ch John + Margt dispute this and are made jt admrs; inv includes 1/4 boat;
Margt Stean als Cubon (in full in BL's collection) 1675 Arch - d 19 Nov 1675;ch John(the heir -he to pay to his sister Jane what is due by contract), Thomas, Robt, Margt, Jane, Isabel; Isabel + Robt jt execs;son-i-law Robt Crayne ;inv

the John born c.1641 + Jane born c. 1644 would fit but can't see name of farm mentioned

the bur reg has for John just Jo senr bur 24 May 1675 + margt als cubon bur 19 Nov 1675

it will probably be some time before I've transcribed Braddan records (and they will be on CD)