Bondsmen (sometimes called securities) on an administrator’s bond are not saying they are paying the bills of the estate. They are saying that they are vouching for the administrator and that if the administrator runs off, doesn’t pay the bills, etc. that they are “good for it” and have the funds to pay the bills–and the court will enforce the bond if necessary. If the administrator does his job, the bondsmen have no need to worry. Consequently the bondsmen are people who knew the administrator and trusted him to “do right” by the estate.