Happy Birthday Poppy! December 15, 2010Advent Calendar#Mershell C. Graham, #Wordless WednesdayKristin Mershell Cunningham Graham 1888 – 1973 Poppy chose to celebrate his birthday on Christmas day because he didn’t know the date he was born. I don’t remember ever celebrating his birthday, but I don’t remember celebrations for any of my grandparents birthdays.