The Lowell Aaronholt's last will and testament is a paper note in Fallout 76.
It can be found on the corpse of Lowell Aaronholt, who lies in a bathtub in a collapsed shed in the Aaronholt homestead, east of the houses and down in the field.
To whomever finds my body-
The granary shed holds provisions that should last you a little while. I ponder what became of my brothers Shawn and John. I should have gone to Chicago.
P.S. Watch out for those giant flying bats!