Brom and Jaeger met as children in the company-run frontier town where Jaeger lived until his father apparently died and he began his habitual drifting. Several stories depict them drinking together as adults, though it is unclear whether they kept in touch or accidentally crossed paths again after Jaeger left the company town.
During Voice, her search for Jaeger leads Rachel Grosvenor to meet Brom in an emergency room waiting to “give blood” (footnotes indicate he gets used as an antibody farm.)