The first holotape is found on Mac's farm. It can be found on a barrel next to the front door.
Enola Walker: Joan in '77 and the kids in the Drowning, but I had my damned dogs. It's bad enough that the beast tore up the homestead. Ruined everything. I could've rebuilt, but it's not worth it without my boys. So if you find this place, I'm willing it to you. Just let anyone listen to this tape and they'll know. I took the last of my good chems for the bites, but the rest is yours. The last thing I'm going to do is hunt that ugly beast down and kill it before I go.I lost