|Mike Seales Venture-Captain, Alabama—Birmingham aka Grolloc|
Contact your local venture officer or your GM if it was very recent, either can reprint your chronicle for you. Write down as much info as you can remember about the session to help that person track down your info: your PFS number, the scenario name and number, the date and location you played at, the GM and a few other player/character names at your table, and any specific boon or loot weirdness you can remember.
Most of this would be for an existing character, but for a perma-dead one you could really just write a note on the last chronicle you do have for him. Mostly you just need a reminder that he's unplayable in the future.