It shall be the duty of any person authorized to take acknowledgments and administer oaths, to perform such service free of charge for any soldier, surviving spouse or orphan of a soldier, or parents of a soldier, who may apply to them for the purpose of making affidavit to papers for the purpose of obtaining pensions and all other papers connected with and referring to the military service of any ex-service person.
51 Pa.C.S. § 9101