Ohio Rev. Code § 2703.24
Current with legislation from 2024 received as of May 9, 2024.
When it appears by affidavit that the name and residence of a necessary party are unknown to the plaintiff, proceedings against him may be had without naming him; and the court shall make an order respecting the publication of notice, but the order shall require not less than six weeks' publication.
R.C. §2703.24