Ohio Rev. Code § 1719.08
The officials named in a will providing for a charitable trust as specified in section 1719.06 of the Revised Code, the other persons therein named, and, in case the articles are filed by the executor, the not more than two citizens and residents of the county in which the charities are to be administered or the institution or school located who execute and acknowledge them with such executor, shall, upon the filing of the articles, become the members and directors of the corporation. As the term of any such official expires, his successor, by virtue of his office, thereupon shall become one of the members and directors of such corporation.
Upon the death or resignation of any person named in such will as a director associated with such officials, his successor shall be appointed in the manner provided in such will if it makes provision therefor, or by the board of directors if it does not, and shall thereupon become a member and director of the corporation. Upon the death or resignation of either of the two citizens of the county, who have become directors by reason of joining in such articles of incorporation, his successor shall be chosen by the board and thereupon shall become a member and director of the corporation.
R.C. §1719.08