Ohio Rev. Code Ann. § 313.131
(A) As used in this section:
(C)
(D)
(E) For purposes of divisions (B), (C)(1), and (D)(1) of this section, any time the friends or relatives of a deceased person disagree about whether an autopsy is contrary to the deceased person's religious beliefs, the coroner shall consider only the information provided to him by the person of highest priority, as determined by which is listed first among the following:
(F)