How did Gumbo get its name?

Onion, celery and bell pepper.

That is a fine name. I love frogs. Those are cute names. I have two frogs named Kermit and Peabody.

The scientific or taxonomic name would be Oenothera caespitosa.

Usually Jim or Jimmy is short for James

"your name is" is correct English and when used in this way means both your full name or a part of your name (usually surname, depending on the context). "your names are" is also correct English, but...