How to pronounce “giles” in English

Learned an interesting lesson writing Giles.

Giles' apostrophe or with no apostrophe.

Giles teaching art, first, and then third grade.

Giles', considerable effort was invested in researching whether the headed notepaper

Giles' Cafe knew it all along and could have told them for nothing.

And another writer and I were talking about coming up with British-isms for Giles, making sure he sounded British.

Well, she persisted, in part because there was another wonderful researcher named Jacqueline Giles in Australia, who had just published

Giles' with an apostrophe.

Giles-- without one.