Setting Up Lawyer Firm on Quickbooks Online... Need Help!!!

I am currently setting up a lawyer who has his own business on Quickbooks Online from 2013 to current.  I have a question and maybe someone out there can help me.  His bank deposits have no information, just check numbers and amounts.  I am researching if he had a client at that particular time frame and if there was fees that he charged for that time frame and amount, however for most there isn't a match.  I need to reconcile the bank accounts because I have expense checks, however how should i enter these deposits that are untrackable?   Should I create bank deposit under customer "Misc. Customer" and the amounts and put it towards the chart of account "Uncatergorized Income" or should I do general journal entries for these deposits?  If so how should I do them???  I'm really stumped on this one.  There is no way of tracking these deposits.  At this point i just want to enter them as income received.