Farm Book, page 124
by Thomas Jefferson

Monticello farm
Divide it into 3. fields of 60. as. each. 1. for half corn, half oats, peas, or millet one for wheat, 60 as. and one for clover 60 as. and aim at a 4th. for clover also as soon as we can.
The North field, to wit the 60. as. N. of the road leading through the farm will be one.
The Riverfield, to wit, the field on the River & up, between the road & Park branch to the Ragged br.
Belfield, to wit the grounds between South of the same road, & between that, the N. & S. fence & the perpetual pasture, for a 3d.