The wife of Santa Claus, she is believed to have been introduced in the short story "A Christmas Legend" (1849) by James Rees (however, realistically, someone, somewhere most likely told their child that Santa had a wife long before that).

In the 16th century, the public officials of York would go “Yule Riding,” i.e., ride horseback through the streets in an annual St. Thomas’ Day ceremony that ushered in the Christmas season. “But the sheriffs, their wives, and their serjeants were not the chief show in the streets of York …. ‘Yule and his wife’ amused the good citizens, and no doubt drew a larger crowd after them than all the officials of their city …” (“Old York”). The pair were so popular that the archbishop was afraid the entertainment would keep citizens from church and so penned a letter in 1572 forbidding it, saying that the “two disguised persons, called Yule and Yule’s wife, … ride through the city very undecently and uncomely, drawing great concourses of people after them to gaze, [which] tendeth … to the profaning of that day appointed to holy uses, and also withdrawing great multitudes of people from Divine service and sermons ….” The archbishop’s letter may be the earliest public document to mention a Mother Christmas character.

By 1874, some Christmas mummers plays in England were including the character of Father Christmas’ wife, named Old Bet, Old Betty and Dame Dorothy in the extant transcripts. In an argument about whether their next meal should be roasted or fried, Father Christmas gets so enraged at Old Bet that he strikes her dead. Luckily, a nearby physician is able to bring her back to life (“Christmas Mummers in Dorsetshire”). Two later stories (“There Was a Boy Who Lived on Pudding Lane” and “The Great Adventure of Mrs. Santa Claus”) give Mrs. Santa Claus the related name Bessie rather than Betty. (See below.)

The idea found its way in several short stories over the following decades until becoming the protagonist of "Goody Santa Claus on a Sleigh Ride" (1888) by Katharine Lee Bates (Goody being short for "Goodwife" used instead of Mrs.). In Bates' poem, Mrs. Claus wheedles a Christmas Eve sleigh-ride from a reluctant Santa in recompense for tending their toy and bonbon laden Christmas trees, their Thanksgiving turkeys, and their "rainbow chickens" that lay Easter eggs. Once away, Mrs. Claus steadies the reindeer while Santa goes about his work descending chimneys to deliver gifts. She begs Santa to permit her to descend a chimney. Santa grudgingly grants her request and she descends a chimney to mend a poor child's tattered stocking and to fill it with gifts. Once the task is completed, the Clauses return to their Arctic home. At the end of the poem, Mrs. Claus remarks that she is the "gladdest of the glad" because she has had her "own sweet will".

She has since appeared in multiple literature stories, comic books and (less often) in film and television.

In “There Was a Boy Who Lived on Pudding Lane,” Santa Claus grows up in Cole’s kingdom alongside nursery rhyme characters and marries a local woman named Bessie before moving with her to the North Country to become toymakers for the children of the world.

In some stories, she and Santa have offspring: Kitty Claus, or Bertha and Fritz.

In ''The Marriage of Santa Claus,'' Santa Claus is portrayed as a lonely bachelor trying to determine the best candidate to be his wife. Concluding it should be someone who loves children as much as he does, he rushes off to propose to Mother Goose rather than Mother Christmas or Spring the Beauty as in other stories. After she accepts, the reindeer immediately carry her and her “children” (numerous nursery‐rhyme and fairy‐tale characters) to live in Santa Claus’ “great palace,” apparently before even any wedding ceremony.

All published appearances of Mrs. Claus from before January 1, )-(95)}} are public domain in the US.

Some notable appearances are listed below:

* Letter by Edmund Grindal, Archbishop of York, suppressing the annual riding of Yule and Yule’s wife (13 Nov. 1572, published Dec. 1875)
* “A Christmas Legend,” by James Rees (1848) 
* “Mrs. Santa Claus and Jessie Brown” (9 Jan. 1869)
* “Christmas Mummers in Dorsetshire,” by John Udal (26 Dec. 1874) - greatly expanded in 1880 to include entire transcripts of mummers plays
* “Old York,” by Rev. J. Morris (Dec. 1875)
* “The Marriage of Santa Claus” (poem) (1881)
* “Goody Santa Claus on a Sleigh‐Ride,” by Katharine Lee Bates (Dec. 1888)
* “A Child’s Christmas Prayer,” by James W. Foley (1910)
* The Magic Aeroplane, by Mrs. L. R. S. Henderson (1911)
* “There Was a Boy Who Lived on Pudding Lane,” by Sarah Addington (Dec. 1921)
*“The Great Adventure of Mrs. Santa Claus,” by Sarah Addington (Dec. 1922)
*The Christmas Forest, by Louise Fatio (1950) – in the public domain from failure to renew copyright

*Santa Claus’ Daughter, by Everett Elliott and F. W. Hardcastle (1892) – Santa Claus is portrayed as a king, “Ruler of the Kingdom of the North Pole,” where he lives with Mrs. Santa Claus and their daughter in a “Snow Castle” or “Snow‐palace.” (Mrs. Santa Claus should logically be the queen but she is not described as such.) The kingdom is defended by, among others, a female personification of Christmas, a separate character from Mrs. Claus/Mother Christmas
*“The Conquest of Santa Claus,” by Caroline A. Creevey and Margaret E. Sangster (27 Nov. 1894)
*Mr. and Mrs. Santa Claus on the Day After Christmas, by Minna C. Denton (27 Nov. 1897)
*Mrs. Santa Claus, Militant, by Bell Elliott Palmer (1914) – Mrs. Santa Claus gets tired of making toys in Iceland while Mr. Santa Claus (whom she calls “Jolly”) gets all the credit, so she waits for him to take a nap and then steals his sleigh and attempts to deliver the Christmas presents herself, mixing some of them up due to her inexperience. The final gifts are delivered to a squalid New York City tenement where Mr. Santa Claus catches up to her and declares that she shall ride with him every Christmas thereafter.
*When Santa Claus Went to the Front, by Ethel E. Reed and Martha G. Kendall (1918)
*Telephoning to Santa Claus, by John D. MacDonald (1919)
*A Christmas Dilemma, by Katharine Van Etten Lyford (1920)
*Queen Christmas, by Carolyn Wells (1922)

* Rudolph the Red-Nosed Reindeer (1964)
* Santa Claus Conquers the Martians (1964)

* Judge (1881 series) #2147
* Four Color Comics #205, 254, 607
* Santa Claus Funnies #1
* Woolworth's Happy Time Christmas Book 1952
* Buster Brown #33
* The Adventures of Jo-Joy in a Present for Santa Claus!

*[http://www.comicvine.com/mrs-santa-claus/4005-22192/ Comic Vine]
*[http://en.wikipedia.org/wiki/Mrs._Claus Wikipedia]
*[http://www.theglobeandmail.com/news/politics/canada-issues-santa-claus-a-passport/article16072973/ Santa & Mrs. Claus being issued Canadian passports!]
*[http://christmas-specials.wikia.com/wiki/Mrs._Claus Christmas Specials Wikia]
*[https://comicbookplus.com/search/?q=Mrs.+Claus#gsc.tab=0&gsc.q=Mrs.%20Claus&gsc.page=1 Comic Book Plus]
*[https://www.comics.org/story_by_character/Mrs.%20Claus/sort/chrono/ GCD]
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