Bibliography of Seton short stories/articles?

Hello,
I am a librarian seeking a bibliography of Seton's short stories and articles. What I am specifically looking for is a reference to a story about wild dogs of New York City -- or possibly pets who have gone wild in New York City. It was supposedly published in a journal called "The American" in the 1910s or 1920s. Unfortunately I do not have a title.

My goal is to get a copy of the story, so if anyone knows another place where the story can be located (a collection?), that would also be great.

Thank you,
Anne Killheffer
Reference Librarian
Stratford Library Association
2203 Main St., Stratford, CT 06615

203-385-4164
anne@stratford.lib.ct.us