father's mother's father's father's father's father
Link to his son James Johnston:
http://genealogistsforum.co.uk/forum...James+Johnston
Name - "official" name and what they were known as
David Johnston
Date and place of birth
unknown
Probably Aberdeenshire, Scotland and probably 1760-70
Names of parents
unknown
Date and place of baptism - if applicable
Details of each of his or her marriages - if any
Isabella Malcolm, from son James' death certificate
I haven't found a marriage
Occupation(s) - if any
unknown
Addresses where they lived (including county if in UK) - and please list which censuses you have or haven't found him/her on (if s/he lived in census times!)
Birse Aberdeenshire (where his son James was born)
Date, place and cause of death
unknown
Date and place of burial
unknown
Details of will / administration of their estate - if applicable
unknown
Memorial inscription - if any
unknown