I have a couple of turtles that call my pond home. I really like them. Mine are generic North American Pond turtles as far as I can tell. Mine are fairly skittish - if you get closer that about 5 feet they will dissapear into the water.
They do need a place to sun so if you don't have a place then anchoring a log is a good idea. Mine use a bush that overhangs the pond.
Bobad, have you ever tried a turtle trap? They sell them at Memphis Net. Here's the link
Memphis Net Search on turtle traps.
Here's one of my turtles....