Matthew,
I have a little back yard orchard with all four of your choices and a few others here in central Virginia. The Hewes crab has produced a small crop in each of the last two years and I got a couple of apples on the Harrison this year. The others have not produced yet but the trees are growing nicely and still very young. Most are on MM-111 and a couple on M-7.
Albemarle Cider Works and Vintage Virginia Apples (two companies same folks) are located about an hour north of me and they grow each of these and many, many other older varieties. They produce a very good single variety cider from both Hewes Crab and Harrison. The ciders are well received.
I don't think you can go wrong with any of the four you have selected in your area. Harrison and Campfield were both historically grown in New Jersey for cider and often blended together so they should do well as a blend. The folks at Albemarle are friendly and will often take the time to talk to newbies.
In Claude's book, Golden Russet is noted as an excellent choice for cider when grown in almost all areas of the US and he recommends it as among the first choices for a cider orchard in most areas of the US.
I would be inclined to try to find room for a 6th tree if possible and make it a Wickson crab. If space does not allow for this then you can graft Wickson or another crab useful for cider on a few branches of the primary trees to get a little extra pollination help and for use to add some acidity and complexity to the mix.
Bill C.