1 Chronicles 29:29, How many books do we have here and where?

Question: How many books do we have in 1 chronicles 29:29 n where? Answer: This verse mentions three prophets; Samuel, Nathan, and Gad.  We know that Samuel died in 1 Samuel 25:1 so we know that he could not have written all of the acts of King David, first to last.  We do know that Gad was around to give David instruction (see 1 Samuel 22:5).  Also Nathan was around in the middle and end of David life (see 2 Samuel 12:7-10).  I believe that the books of all three of these prophets are contained in the books we know now as 1 and 2 Samuel.  -PG