A petition for the allowance of a will must show: (a) the jurisdictional facts; (b) the names, ages, and residences of the heirs, legatees, and devises of the testator or decedent; (c) the probable value and character of the property of the estate; (d) the name of the person for whom letters are prayed; and (e) if the will has not been delivered to the court, the name of the person having custody of it