Merry Christmas to Brother Walter

I have so many cards to Walter from his siblings. I wonder if he wrote back to them or adored them as much as they did him.

The message to Mr. Walter Till reads:

To Bro Walter from Sister + Brother Susan + Frank. Why don't you ever write again. loads of love for  merry XMas + a Happy New Year.

Bonne Année!

Three lovely French cards wishing you a Happy New Year. For all I know, it may be the same woman on all three cards.

Here are the backs of the cards in the same order:

Merry Christmas from the Goldfish

This is a not a postcard, but a regular Christmas card of a very large couple and their miniature children, separated by a Christmas tree.

I had always thought that the Christmas tree had pagan origins, but according to Wikipedia, Christian lore attributes the tree's origin to Saint Boniface and the German town of Geismar: "Sometime in St Boniface's lifetime (c. 672-754) he cut down the tree of Thor in order to disprove the legitimacy of the Norse gods to the local German tribe. St. Boniface saw a fir tree growing in the roots of the old oak. Taking this as a sign of the Christian faith, he said '...let Christ be at the center of your households...' using the fir tree as a symbol of Christianity."

Well, O.K., but then there's Santa Claus (aka Saint Nicholas), and he does appear to be based  on the Germanic pre-Christian God, Odin. And what about those elves? I'm just trying to figure out how this all fits together.