Justinus Trinket is the husband of Euphemia Trinket, and the father of Effie Trinket. Euphemia and Justinus Trinket were a famous couple back in their day as they were not only bankers but also sponsors and investors of Capitol News. Justinus is also the son of Jerome Trinket.
- The name Justinus would later evolve to the name, "Justin", like Justin Hix. Justinus means Just; upright; righteous.