Members of the board may be allowed compensation by the commission and, if allowed, such compensation shall be in an amount to be determined by the commission. All members may also be reimbursed for any actual and necessary personal expenses incurred as a member of the board, including an allowance for mileage, in the amount fixed under Kan. Stat. Ann. § 75-3203, and amendments thereto, for each mile actually traveled while engaged in hospital business. An itemized statement of all such expenses and money paid out shall be kept and maintained and shall be filed with the secretary and the commission, which shall keep and maintain the same as a part of the public records of the county.