Reading Genesis correctly?

Genesis is authored by Moses, as well as the rest of he Pentateuch.  Moses is not living during any part of Genesis, as he is for the other 4 books, Exodus, Leviticus, Numbers and Deuteronomy.  It is logical to see that eye witness did write much of Genesis, that is "edited" by Moses.  "These are the generations of..."  is the start of that eye-witnesses "tablets".   So Joseph will end up with his father's (Jacob/Israel) as well as those handed down to him since Adam.  
These tablets with their "generations" written on them were known as toledoth in Hebrew which  we have translated Genesis.  
Side note, Genesis is cited over 200 times in the New Testament, but never gives Moses credit, while there are at least 40 other times where the other four books Moses wrote are quoted and he is listed.  Even a few times in the OT, that the four books are cited and credited to Moses, by never Genesis.