Help appreciated

[brigidmac]

I agree with Hurworth

On logistical reasons . As well as statistics

Might be an advantage that he was a bigamist if he had children with both wives . And you match their descendants

I asked about ethnicity because ancestry does divide English into regions for example my mother's English percent shows as being Cheshire
A friend's shows as being Cornwall
If EM  had a percentage of Scottish or Irish or Welsh this will show up distinctively in your shared matches and yourself