21 Pa. Stat. § 453
Every affidavit herein provided for shall include the name, age and residence of the affiant, a description of such real estate, title to which may be affected by facts stated in such affidavit, and facts showing that the affiant has personal knowledge of the facts stated, and shall state the name of the person appearing by the record to be the owner of such real estate at the time of the recording of the affidavit. The official taking the affidavit shall certify that the affiant is personally known to him or her, or satisfactorily proven, to be the person named as affiant. The recorder shall index the affidavit in the name of such record owner in both grantor and grantee indexes, and, if possible, shall note the recording thereof in the margin of the record of any instrument therein referred to.
21 P.S. § 453