Ruby
From Junkyard Truck Wiki - Official
Note: This is part of the version 2.0 update which you may or may not have yet. This wiki often contains information on updates before they arrive.
Ruby is located on a farm directly south from the Junkyard. This NPC sells barley and hops which you can buy for beer production. Exhausting her stock will open new dialogue which allows you to buy a farm plot and a tractor for Farming your own barley.