Table:
text: 2007 Claxton Shield team rosters
New South Wales Patriots
Player Roster
Surname First_ D_O_B_ Uni_ Bats Throws Position_
GRAHAM Andrew 22/04/82 24 R R C
COOK Andrew 17/02/81 26 L L LHP
OELTJEN Trent 28/02/83 27 L L OF
HARRIS Vaughan 10/06/81 32 R R RHP
AUTY Timothy 21/12/85 33 R R OF
D’ANTONIO Trent 14/08/85 36 L R UTY
THOMPSON Richard 1/07/84 41 R R RHP

Question: What is the first surname of Koch among New South Wales Patriots Claxton Shield squad rosters in 2007?