First 100 pages are cornbread and biscuits.
Don't know if it's in there, but when it comes to southern baking, the king of the heap that's distinctly southern, but not biscuits or cornbread, is probably pecan pie, with sweet potato pie being an almost tie.
After that, peach cobbler/pie.
Then probably strawberry rhubarb pie/cobbler
Pies are a little more old school southern, since they've been baked in some form or another since europeans came over.
But, if you step out of that, bread pudding is maybe more ubiquitous, depending on where in the south you are.
Now, cake wise, hummingbird cake is likely the one most people think of, and is likely to be in that book.
However, soda cakes are incredibly beloved. Coke and cheerwine in particular have honored places. RC cola, and sun-drop too, though the sun-drop is a bit more regional. But any recipe for any of the sodiepop cakes are interchangeable. They're obviously more recent, but still a staple.
If there's a recipe in there, fresh apple cake is amazing, but it isn't as popular.
Another one that's not purely southern, but has become a deep tradition in some families are "friendship" cakes. They're called that because part of the process involves fermenting fruit, and when you make the cake, you split off part of the resulting starter and give it to others. It's essentially fruitcake, but much better than any of the usual commercial brands. Moist, rich, and full of flavor.
It depends on what's in the book though.
