I have found that if you can get the death certificate for them that the info you seek is on it. Not all the time but it can be a starting point. You have the date of death for Hugh and the state. Contact the county in which he died and they may have the records for you. If not you may have to go directly to the state. I have found that most of the people you contact will be very helpful and will lead you in the right direction. Happy Hunting!