Board Thread:General Grimm Discussion/@comment-28191176-20160823112507/@comment-64.26.116.219-20170603185041

Calvert and Turner seem to have multiple origins, but the primary one for both is English (though some Calverts and Turners DID travel to Ireland apparently):

https://www.ancestry.com/name-origin?surname=Calvert

https://www.houseofnames.com/Calvert-family-crest

https://www.ancestry.com/name-origin?surname=Turner

https://www.houseofnames.com/Turner-family-crest