Interesting Crop Circle story from 1964!

Ok this story isn't complete. I still need to talk to several people to get all the information but here is what I have thus far...

In Williamsburg, VA back in 1964, off the main road in town (Richmond Rd.) there was a wheat field that appeared to have crop circles. I have witnesses that saw them with their own eyes, and actually walked INSIDE the circles because they lived next to this field.

The military/government was so concerned, that they shut down Richmond rd. AND the railroad stations for 4 days so no one would see this field, they even put up tents/tarps to make it completely covered visually from the road or from the air. Members of the family that lived in this house say the FBI interviewed them, and nearby families asking if they saw any lights, heard any noises ect...

I think this story is INTERESTING as to all the "evidence" that should be documented of the railroad closures, and all the testimony from possible witnesses. And this was in 1964, how common were crop circles back then? Isn't it unlikely this was a hoax? What do y'all think? I'll update with more information when I get it.