Notes

• Outline map of parish boundaries (just) for Yorkshire North Riding
• Colour in parish shape depending on count of Royalists / Parliamentarians
• Range of blues for Royalists and reds for Parliamentarians
• NOT YET: On load zooms to bounds of map (ie focuses on county of interest)
• Don’t display if no Parish

Parish boundaries

• 1831Counties shapefile
• Filter for GAZ_CNTY = YORKSHIRE, NORTH RIDING
• Save selected features as new geojson file (1043 features; 3.6MB)
• Dissolve features with same parish name and save as geojson (199 features; 2MB)
• Simplify 20% on mapshaper.org and save as geojson (199 features; 450kb)
• Save as topojson which reduces filesize, & thus load time, even further (199 features; 100kb)

Payments data

• CSV from export listing all payments
• Filter for person_location_county = yorkshire, north riding
• Calculate allegiance based on payment date (<1660 = Parliamentarian; >1660 = Royalist)
• Save CSV with fields as listed below
• Export contains latlng but not name of this place

Field	Example	Note
id	1	row number; just for internal reference
allegiance	Parliamentarian	used for pin colours
person	Abraham Barringham of Marrick, North Riding of Yorkshire	used for pop-up
parish	MARRICK	used for pop-up
latlng	54.3794,-1.88327