1940 census Buffalo NY, James Trewolla

Today I discovered the 1940 census for my Grandparents James and Miriam Trewolla. I have been missing that one for years. I stumbled on it when I was searching for my Grandmas brother who was a Harrison. When I found her brother on the census, I saw that he lived with his sister Miriam and her husband James. But it was indexed as Kewolla on Ancestry.com. So that's why I have never been able to find it. That's what I love about genealogy is finding unexpected things like this.

1940 census Buffalo NY