Wow, thanks for all the replies!
In answer to Daryl's questions, the ground is very rocky but not big in-your-way boulder type rocky, there is a thin layer of dirt overlaying limestone, fot this reason the area is difficult to farm, and people here usually have above ground pools rather than in-ground pools. The farm had and still has a well for water.
The creek is at the end of the road, pretty far for someone to go to haul water to the house, they probably used a well.
There are so many places to think about hunting it's going to be difficult to decide. Prior to my sister moving in the previous owner used the farm for pony rides, so the arena would be a great place to hunt, there's the creek and the grounds around the house itself. I know Civil war soldiers came through fairly often especially towards the end of the war to conscript soldiers. I am sure they camped near or at the creek.
In fact there is a rumor the old house was haunted by a young boy and his father. The story is the Confederate army came through and "recruited" the young boy, he not wishing to go hung himself in the smokehouse and was found by his father. When the old "haunted" house burned and was rebuilt it was carefully not rebuilt in the exact footprint to avoid having the ghost return.
As far as the snakes and ticks and chiggers go, there are plenty of them there, so I will take all the precautions I can. I actually lived with my sister on this farm for about a year in 1999-2000 so I am familiar with the area.
I think going slow is going to be my biggest problem, I am an impatient person but this area has never been detected to my knowledge so it ought to be fun. I am taking my camera so I will try to post pics when I get back next week.
Thanks everyone for all the advice and helpful suggestions, it is really appreciated, and if anyone thinks of anything else please feel free to reply, I am as green as a gourd when it comes to metal detecting. I have mostly fooled around in my yard and a nearby park. I have about a handful of newer coins and some long lost keys so far.
Kathy