Difficult to properly ID many turtles without more pictures showing plastron and head and neck striping. But here's a good bet from what these pictures show;
1 - Some type of Pseudemys (cooter) Looks most like a Florida red-bellied turtle Pseudemys nelsoni. May be a Red-bellied / river cooter hybrid
2 - Melanochelys tricarinata Three - keeled land turtle, Tricarinate Hill Turtle
3 - Ouachita Map Turtle Graptemys ouachitensis
4 - Melanochelys tricarinata Three - keeled land turtle, Tricarinate Hill Turtle
2 & 4 could be reeves turtle. Need to see plastron. Coloring with lighter keels a bit unusual for reeves but could be the lighting. Position of lateral keels is a bit more reeves like.