Here is the full list of all 12 Whiskey Mafia: Frank's Story trophies - there are 11 gold and 1 platinum.
Unlock all other trophies
Exit the post office and collect all deliveries
Deliver all possible mails for the first time
Deliver all possible mails for the second time
Find Giuseppe Bruno
Deliver all possible mails for the third time
Rob the post office
Deliver all possible mails for the fourth time
Set the bar on fire
Steal the booze truck for the first time
Steal the booze truck for the second time
Participate in the illegal fighting