Ollivander a Dragon Slayer?

[Chelle]

No: HPFGUIDX 94430

Ollivander had always been a person that has gotten my attention. He
makes all the wands for everyone, we know that. He collects the
finest things for his materials: Phoenix feathers, unicorn hair,
dragon heartstring....

Dragon heartstring?

OK, Fawkes is bound to shed feathers from time to time. I'm sure
others like him do the same. 

Unicorn hair might be difficult, considering they don't like men.
(Come to think of it, I don't think I'd like it if a mad little man
hopped out of the bushes to pinch my bottom, either.)

But dragon heartstring? Is Ollivander a dragonslayer?

My ex had this theory that Ollivander and the original Ollivander on
his sign are one and the same.

Any thoughts?

~ Chelle