Donna is mentioned in an IRM proposal for Goodwin Morin. The specific by-name mentions are:
She befriended Donna Milicic shortly after ze joined the team. Milicic, already an accomplished shoe thief, helped show Morin the ropes and acclimate her to The Choux.
and
Goodwin Morin achieved Legendary status on Season 18, Day 99. She left behind most of her worldly possessions, most of which were left to Marijuana, Semiquaver, and Milicic. The only things none of them could find were her favorite pen and notebook.
