Deletion of Cornish American

Comment: I think the evidence provided (although not other WP pages per se - the Kingdom of Cornwall page in particular looks pretty woefully sourced for a lot of its assertions) would suggest that there is more leeway for the concept of "Cornish American" than there is for "Mercian American", or "Berkshire American", but at the same time it is not an officially accepted ethnic definition in the US like say "Irish American" is - Americans with family origins in Cornwall would be "English Americans" in US census categories, whether they liked it or not. Equally some of the sites pointed to above are of course self-published, and while they provide evidence of the existence of Cornish culture and self-identifying Cornish people in the US - and possibly the occasional use of the actual term "Cornish American" - they do not provide evidence of its notability. Are there any serious, |reliable sources that use the term "Cornish American" and apply it to individuals? Beyond that, even if the page is kept, as noted on the article talk page, the page has problems. For example there's a real issue in respect of some of the people who have been listed as Cornish Americans, when there's zero evidence that they or anyone else describe themselves as such
Stance: comment
Cited policy: Wikipedia:Reliable sources (WP:RS)