When Nathan tells the Chief he buried him in a cooler, the Chief replies it's a "waste of a good cooler." This reflects what Audrey said in S2E01 when Nathan asks her to bury it.
The death certificate shows the date of death as 2/29/2009 ... Not a leap year.
The list of names shows several names of characters that appear in previous episodes- e.g. Marion Caldwell from S1 E1 who controlled the weather through her emotional state