Whenever any county has prior to the effective date of this act issued its general obligation bonds in the sum of sixty thousand dollars ($60,000) for the purpose of acquiring a site for and building and equipping of a county home for the aged in accordance with the provisions of Kan. Stat. Ann. § 19-2106b; and the ballot on which the question of issuing such bonds of the county contained the proposition that funds derived from the sixty thousand dollar ($60,000) bond issue were to be used with some thirty thousand dollars ($30,000) then held in escrow for the purpose of building a ninety thousand dollar ($90,000) home for the aged in the county, said sum of thirty thousand dollars ($30,000) to be delivered to the county when and if the bond election was approved by the voters of such county; and the bond issue was approved at a special election by the voters and was legal in all respects and thereafter bonds were issued and bond and interest levies made, but the moneys held in escrow were returned to the donor when construction of the home was not begun in accordance with the grant; and where said sixty thousand dollars ($60,000) together with any interest is insufficient to build an adequate home in such county, the board of county commissioners of such county is hereby authorized to use the said sum of sixty thousand dollars ($60,000) for the purposes for which the bonds were issued, together with any interest or income therefrom, together with proceeds from any bonds which may be subsequently issued by such county in accordance with law; or may use such bond proceeds and income therefrom in conjunction with any sinking funds which may be hereafter established by the county for a home for the aged as provided by law, but such funds shall be used, in any case, only for the purpose of acquiring a site for and building and equipping a home for the aged in the county which has heretofore issued the bonds.