Any snake wranglers out there?

Hi all,
Found this little guy, in my back yard, he and/or his brother have been hanging around for a month or two.

One that I saw had yellow on its belly and MIGHT be a Yellow Bellied Racer, he looked more like this, but about the same size as the one in my pictures.




The little guy I saw...
I think he is a
Plains Garter Snake





What do you all think?

I love having snakes around I just want to be sure my dog and the neighbor kids are safe