The one looks like a Barbours, but definitely a Map turtle (the one with the black dorsal ridge.) The other looks like maybe a big headed musk turtle, or giant musk? I dunno, I'll do some googling too.
Loggerhead Musk turtle!! That is the one I was thinking of!
We are going to need better pictures to ID your turtles. Getting closer with some better lighting (or darker so the flash will work). Pictures of the carapace (top shell), plastron (bottom shell) and heads will help greatly.
But the smaller one is a Map turtle (just can't tell species). The larger one is a musk turtle, but not a Loggerhead as it's got three keels on the carapace.