18th century farming? They had horses and plow mules and oxen ...
More like 13th century hard scrabble.
There is a lot of the old horse draw equipment rusting away in pastures where I live and still a lot of horses and mules. I believe the area farmers could manage to get a lot of it in working order in a year if they aren’t killed off by the marauding urban zombies.
There are no major cities within 200 miles in any direction, so I’m not terribly worried about them making it all the way out here. But fuel and fertilizer are going to be the main issues in feeding our community.