You may know Ursula Fanthorpe (known as UA Fanthorpe), but I discovered some of her work just a few years ago, and enjoy her new-to-me look at some treasures of life. This piece in The Telegraph shares three of her poems, and that she began writing Christmas poems for friends in 1974, and sent them in her yearly Christmas cards. You can find a collection of these poems in Christmas Poems: BC:AD here.
Here's a favorite poem by UA Fanthorpe for Christmas:
This was the moment when Before
Turned into After, and the future's
Uninvented timekeepers presented arms.