Distribution of PLANKs pre 1750 (IGI)
View this map in county fill form.
Each red dot represents a place where one or more birth, baptism or marriage events took place.
There are 55 places where PLANKs are mentioned with 23 of them in Wiltshire.
Of the 213 events 125 are in Wiltshire. The only other concentrations of PLANK events are in London & Middlesex with 44, Hertfordshire with 15 and Surrey with 14.