64.—On the hearing of any application for compensation, the following persons, and no others, shall be entitled to appear, be heard and adduce evidence before the Board, that is to say:—
(a) the Minister;
(b) any person claiming to be entitled to such compensation;
(c) any person claiming to have an estate or interest in the minerals or land in respect of which such compensation is claimed;
(d) where compensation in respect of land is claimed, any person claiming an interest in such land;
(e) where compensation in respect of land is claimed and such land is subject to a land purchase annuity, the Land Commission;
(f) any person liable under the provisions of this Act to pay such compensation.