Kage Baker has a fantastic series in which "The Company" creates cyborgs who travel back in time to retrieve things- starting with In the Garden of Iden. The primary character, Mendoza, was a little girl the Company saved from the Inquisition.
James David has a series about dinosaurs and time travel, starting with Footprints of Thunder.
Ben Elton- Time and TIme Again
Michael Swanwick- Bones of the Earth
Joe Haldeman- The Accidental TIme Machine
LIz Jensen- My Dirty Little Book of Stolen Time
I have more recommendations if you are interested, let me know.