Revisit to William Comer Visitor Center location for Gulf Islands National Seashore

I started my visits to the Mississippi Gulf Shore by revisiting the William Comer Visitor Center to see if by chance they had the Ship Island Stamp, which they did not, since the Ship Island tours were open.  So I opted to just get a hiking staff medallion for the Davis Bayou unit of the park instead.  Date of visit, June 4th 2013.