Historical British locations: copy from text file to spreadsheet then web search to fill gaps

I have a list of 265 locations (cities, towns, villages, burial sites) which were historically important in Britain before the year 1000. I have a text file of research notes I've collected which I would like to populate the fields in the spreadsheet. Then I would like any gaps in the data to be researched (simply searching Wikipedia for the location name, or Googling it if Wikipedia doesn't have the information) to fill the gaps. Any data that can't be found I can fill in myself at the end of the process.

The data fields are as follows:
Location name (already populated)
Other names for the location (including the modern location name, if different)
The meaning of the location name provided (if known)
Classification of location (major settlement, minor settlement, fort, burial site, etc.)
Founded (year or century the location was settled, if known)
Status as at the year 1000 (was the location still inhabited, or was it destroyed or abandoned and if so when?)
Tribe (which Celtic tribe the location belonged to, if relevant)
Brythonic kingdom (which Romano-British/Celtic kingdom the location belonged to, if relevant)
Anglo-Saxon kingdom (which Anglo-Saxon kingdom the location belonged to, if relevant)
Comments (anything noteworthy)

I've already populated the data for the first 10 locations as a model of what information I'm looking for. Please find attached the spreadsheet document as well as the text file of my notes. Towards the end my notes become less detailed until they're merely the location names themselves and/or Wikipedia links.

This is not for an academic purpose so academic rigour isn't necessary, however if any sources other than Wikipedia are used I need the link where the information came from.

Happy to explain in more detail if requested.