All moneys received by such relief association and deposited by it in its special fund shall be appropriated and disbursed by each such association only for the following purposes:

1. (a) For the relief of sick, injured and disabled members of the association, their surviving spouses and orphans.
2. (b) For the payment of disability and service pensions to members of such relief associations.
3. (c) For the payment of administrative expenses of the association as authorized pursuant to section 69.80.