Ohio Rev. Code Ann. § 2108.09
(A) Subject to divisions (B) and (C) of this section, and unless barred by section 2108.07 or 2108.08 of the Revised Code, an anatomical gift of a decedent's body or part for purpose of transplantation, therapy, research, or education may be made in the manner provided for under section 2108.10 of the Revised Code by any member of the following classes of persons who is reasonably available, in the following order of priority: