Moore County Clerk 715 S Dumas Ave # 107 Dumas, TX 79029 Phone : (806) 935-2009 Business Category Government Offices & Public Schools Moore County--court House, County Clerk Brenda Mckanna Dumas, TX 79029 Phone : (806) 935-2009 Business Category Government Offices-County Government Offices & Public Schools Moore County Of--clerk Courthouse Dumas, TX 79029 Phone : (806) 935-2009 Business Category Government Offices-County Government Offices & Public Schools