The boards of county commissioners of the several counties and the governing bodies of municipalities of this state, may, in their discretion, contribute sums of money annually not to exceed twenty thousand dollars per annum to nonprofit self-sustaining corporations formed for the care and accommodation of aged persons under the provisions of §§ 28-18-1 to 28-18-4, inclusive.
For the purpose of carrying out the provisions of this section, such boards of county commissioners and such governing bodies of municipalities may appropriate out of the general fund of their respective counties or municipalities.