Distribution of MIDDLEBROOKs 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.
The 749 events are spread across 21 English counties. However 75% of these are in Yorkshire (most in the West Riding) and Lincolnshire.
The adjacent counties of Lancashire, Norfolk, Nottingham & Staffordshire account for 118 events (16%). London/Middlesex has just 32 (4%).