There is a main pictorial postmark and an Americover postmark available for each day. 
These two postmarks may also be used for first day covers of the Life Magnified stamps. 
These two postmarks may also be used for first day covers of the Thinking Of You stamps. 
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News and information about stamp collecting
Where can I find other special postmarks (non FDOI) from across the country other than in the USPS postal bulletins and Linn’s Postmark Persuit? Thank you for any assistance.
I’m not ignoring your question, I just don’t have an answer personally. I’m hoping someone else does. You might also try asking in the VSC Facebook group or The Stamps Collecting Forum, forums.delphiforums.com/stamps
Is it too late to obtain any of the GASS special cancels? If still possible, what is the process and address? Thank you.