I think we need to look hard at the large changes which may have happened sometime in the mid 1520/30s. There were big problems in the Douglas cottage rents with a lot of discontinuity between 2 series of rolls. I should go back and analyse this.

BTW John I have a thought that Mc Crere could possibly have connection to living at the end or boundary - i.e. Mac Creeagh. This could likewise apply to names with the element "Mark" ie Quark.
The discontinuity might be to do with instability between locational names and Patronymical names????

N