|"Is this all real? Or has this been happening inside my head?"
The topic of this article is of a real-life subject that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really exists), and, as such, details contained in this article may differ from real world facts.
Myron Otherhaus hailed from Bury St Edmunds. In 1855, when Violet Tillyman mispronouced "I want to go to Mother's house" while using Floo Powder, she ended up at Myron Otherhaus's house in Bury St Edmunds. The two fell in love instantly, and lived together for the rest of their lives, eventually raising seven children of their own.