Heaviest historical cluster: The counties of Herefordshire and Worcestershire in England.
Heaviest cluster for JAUNCEY in 1881: Herefordshire (actual 54, 45 per 100,00 population) and Worcestershire (actual 41, 11 per 100,000).
Mapping of distribution in 1881 England and Wales census using Archer Software’s British 19th Century Surname Atlas (Archer, S. (2017). Available from http://www.archersoftware.co.uk
Numbers outside of England at this time were low: 12 in the USA in 1880, according to https://forebears.io
JOHNCEY/JOHNSEY and close variants in 1881 were low in number but formed a cluster centred around Gloucestershire (22 actual, 4 per 100,000) and Oxfordshire (15 actual, 8 per 100,000), with a separate cluster (if it can be called that) spread thinly across Yorkshire West Riding (10, < 1:100,000), Yorkshire North Riding (5, 1:100,000), County Durham (1) and Northumberland (4 actual, 1:100.000).
