I didn’t do any handout for Desertfall when I ran it, but I did use them a fair amount in the campaign I ran for my group.
In that I had 2 Family trees and House Hierarchys from the two eras as a general handout at the start of each season.
There were also pictures of some of the key members and at various times I handed out wax sealed letters from other Houses, Intelligence reports, letters from the House Seneschal and for the climactic battle a planetary map with unit cards & tokens (from TORG & the Agents of Dune set)
