Epiphany is January 6.
The feast of St. Stephen is December 26, and the feast of St. John the Apostle is December 27. You probably have Stephen for both because Eastern Christians celebrate his feast on December 27. Maybe add John as another type-in?
Anyway the holiday is not "for" anyone. It might mean different things to different people but realistically it's just the celebration of the winter solstice and those traditions stretch back to long before Christ was born.
Born on Christmas Day
In a similar vein though, couldn't "Merry Xmas" also work as a "politically correct" version of "Merry Christmas"?