That's great. What's also amusing is how you felt it necessary to provide the diacritical pronunciation guide for "Vaughan"... because I think to most native English speakers we can't imagine any other pronunciation!
I think native English speaker who had never heard of Vaughan (sure we can find some of those) would likely to pronounce it like "Vog-un" - /ˈvɒɡən/ or "Vog-han" - /ˈvɑːɡən/
I think native English speaker who had never heard of Vaughan (sure we can find some of those) would likely to pronounce it like "Vog-un" - /ˈvɒɡən/ or "Vog-han" - /ˈvɑːɡən/