Your primary sources of information are the five short stories listed in the "Your Assignment" page of this libguide.
The next sources of information are the Casebook entries in The Short Story and Its Writers.
Professor Gendron also asks you to find "other secondary research" that will "enlighten the author's meaning/purpose/message (potentially your thesis) in these stories."
This LibGuide will show how to find secondary information about short stories in the Berry Library databases.
Develop a Search Strategy
The name of your story will be your first topic.
Put it in "quotation marks" to keep the entire title together when searching in the databases.
A general term like "criticism" can be your second term.
This will lead to articles on various aspects of your story.
If you prefer, make a specialized term your second topic: characters, setting, imagery, themes, etc.
The use of "AND" between topics tells the database to conduct a "Boolean AND" search.
A Boolean search increases the precision of your database search.