Fair warning for Tony

This first spider was under the pool skimmer box cover.  At first glance it looked like a redback spider, but when I looked again I wasn't so sure.  Anyone know?

Mystery redback spider
And then there's the actual redback spider that's currently living in our garage under the push mower.  So long as she stays just there I don't mind.  But if she disappears I'll get worried!

Redback Spider