Wa ga Na wa Umishi - Vol. 14 Ch. 131 - I Wanna Climb This Mountain

[MangaDex]

 

[kazamakj]

Looks like her dad and his ex boss have arrived.

 

[Northern]

I'm trying to figure out where these guys are from.
For instance, "Don" is a Spanish honorific for "Lord" and Fraser is a Scottish family name, but the "ä" has an umlaut, so is he German? Jean and Isabella are French names but they don't seem French.