Wyo. Stat. § 41-7-202: Petitioner's affidavit.

The affidavit of any three (3) or more of the signers of said petition stating that they have examined it and are acquainted with the locality of said district and that said petition is signed by a sufficient number of corporations and adult persons owning lands in said district, to satisfy W.S. 41-7-201, may be taken by the court or judge as sufficient evidence of the facts therein stated.