Hi Peter,

None of those Mylchreests in your e-mail look familiar to me unfortunately. I don't have that much information on siblings and distant relations so I can't rule out a distant connection.

The Thomas Arnold you mentioned in your e-mail was a younger brother of my John Arnold (the miller) who was tenant of Castletown Mill (near the Silver Burn) on the 1881 IOM Census.

Brian doesn't mention the 1853 marriage in his Arnold PDF but the record image on Family Search shows Thomas as a Lonan miner son of John Arnold labourer so it is him.

familysearch.org/ark:/61903/1:1:XZTB-KFS