Hi,
My great-grandmother, Bessie Johnston, belonged to a family with a long association with Crear and the surrounding districts.
I have written a short account, The Johnsons and Hamiltons of Crear, which is available free on Smashwords here:
https://www.smashwords.com/books/view/431904
You will have to forgive any errors: I live in Sydney and have not had an opportunity to visit Argyll.
Any comments would be very welcome.
Kind regards, JPC