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!

There are a handful of neighborhood and street names used in Toronto (not necessarily from Toronto) that have unusual pronunciations. Here I'll give some triples of (English spelling, actual pronunciation (IPA), a naive pronunciation (IPA)):

(Yonge, [jʌŋ], [jɑndʒ]); (Strachan, [sdʒɹɑn], [ˈsdʒɹa.tʃæn]); (Tecumseth, [tə.ˈkʌm.zi], [ˈti.kəm.sɛθ]); (Markham, [ˈmɑr.kʌm], [ˈmɑrk.hæm]), (Etobicoke, [ɛ.ˈtoʊ.bɪ.koʊ], [ɛ.ˈtoʊ.bɪ.koʊk]).

See also: https://www.youtube.com/watch?v=i2cyg6bFeRc , https://www.youtube.com/watch?v=1PmeDWvwD8M

As a non-native English speaker I wonder if Leicester is naturally pronounced right for the natives, or has to be explicitly taught.

Typical in Toronto - remember there’s only one T in “Toronto”