Recent content by avholic

My GC indicates "Resident Since" 12/20/2007 but my Welcome Letter notice date is 6/1/2009. I recently received my physical card this month - June 2009. Is the "Resident Since" 12/20/2007 date correct? (PS. My I-140 was approved December 2007, but my AOS/485 was approved only on 6/1/2009).