16 Pa. Stat. § 5130
In order to entitle any historical society to the said appropriation, the following conditions shall have been first complied with. It shall have been organized at least two years, incorporated by the proper authority, and have an active membership of one hundred or more persons, each of whom shall have paid into the treasury of said society a membership fee of at least two dollars ($2) for the support of the same. It shall hold at least two public meetings yearly, whereat papers shall be read or discussions held on historic subjects. It shall have established a museum wherein shall be deposited curios and other objects of interest, books, documents and papers relating to the history of the county or Commonwealth. It shall have adopted a constitution and code of by-laws and elected proper officers to conduct its business.
16 P.S. § 5130