His mother Margaret , a daughter of Patrick Sinclair of Durwin , was his father 's second wife .
Honyman was born in about 1765 , the oldest son of Patrick Honyman of Graemsay , Orkney .
Honyman 's mother Margaret , a daughter of Patrick Sinclair of Durwin , was his father 's second wife .
Honyman was born in about 1765 , the oldest son of Patrick Honyman of Graemsay , Orkney .