Question: In what year was the author of "Trading Christmas" born?

Context paragraphs:
Bill Williams (trader): Bill M. Williams (born 1932) is a British trader and author of books on trading psychology, technical analysis and chaos theory in trading the stock, commodity, and foreign exchange (Forex) markets.  His study of stock market data led him to develop a number of technical analyses that identify trends in the financial markets.  Indicators like Accelerator/Decelerator Oscillator, Alligator, Awesome Oscillator, Fractals, Gator Oscillator, and Market Facilitation Index are popular today in Forex, stock and other financial markets.

Trading Christmas: Trading Christmas is a 2011 Christmas film directed by Michael Scott and starring Faith Ford, Tom Cavanagh, Gil Bellows, Gabrielle Miller, Emma Lahana, and Andrew Francis.  The film is based on the novel of the same name by author Debbie Macomber, who also serves as a producer.  The film premiered on the Hallmark Channel on November 26, 2011.

List of songs recorded by Rufus Wainwright: The columns Song, Album, and Year list each song title, the official release on which the song first appeared, and the year in which the song was released for the first time.  The columns Length, Author, and Producer indicate the length of the track, the author of the song (most often Wainwright alone), and the producer of the track.  References are also provided for each song in the last column of the table.  While many songs listed appear on multiple releases (for example, "Spotlight on Christmas" appears on "Maybe This Christmas Too? ", "The McGarrigle Christmas Hour", and "Elton John's Christmas Party"), songs are listed based on the first release and only appear twice when the recordings have different production information (producer, length, etc.).

Santa Claus in film: Motion pictures featuring Santa Claus abound and apparently constitute their own subgenre of the Christmas film genre.  Early films of Santa revolve around similar simple plots of Santa's Christmas Eve visit to children.  In 1897, in a short film called "Santa Claus Filling Stockings", Santa Claus is simply filling stockings from his pack of toys.  Another film called "Santa Claus and the Children" was made in 1898.  A year later, a film directed by George Albert Smith in titled "Santa Claus" (or "The Visit from Santa Claus" in the United Kingdom) was created.  In this picture, Santa Claus enters the room from the fireplace and proceeds to trim the tree.  He then fills the stockings that were previously hung on the mantle by the children.  After walking backward and surveying his work, he suddenly darts at the fireplace and disappears up the chimney.  "Santa Claus' Visit" in 1900 featured a scene with two little children kneeling at the feet of their mother and saying their prayers.  The mother tucks the children snugly in bed and leaves the room.  Santa Claus suddenly appears on the roof, just outside the children's bedroom window, and proceeds to enter the chimney, taking with him his bag of presents and a little hand sled for one of the children.  He goes down the chimney and suddenly appears in the children's room through the fireplace.  He distributes the presents and mysteriously causes the appearance of a Christmas tree laden with gifts.  The scene closes with the children waking up and running to the fireplace just too late to catch him by the legs.  A 1909 film by D. W. Griffith titled "A Trap for Santa Claus" shows children setting a trap to capture Santa Claus as he descends the chimney, but instead capture their father who abandoned them and their mother but tries to burglarize the house after he discovers she inherited a fortune.  A twenty-nine-minute 1925 silent film production titled "Santa Claus", by explorer/documentarian Frank E. Kleinschmidt, filmed partly in northern Alaska, feature Santa in his workshop, visiting his Eskimo neighbors, and tending his reindeer.  A year later, another movie titled "Santa Claus" was produced with sound on De Forest Phonofilm.  Over the years, various actors have donned the red suit (aside from those discussed below), including Monty Woolley in "Life Begins at Eight-thirty" (1942), Alberto Rabagliati in "The Christmas That Almost Wasn't" (1966), Dan Aykroyd in "Trading Places" (1983), Jan Rubes in "One Magic Christmas" (1985), David Huddleston in "" (1985), Jonathan Taylor Thomas in "I'll Be Home for Christmas" (1998), and Ed Asner in "Elf" (2003).  Later films about Santa vary, but can be divided into the following themes.

Robert E. Pardo: Robert Pardo (born 26 April 1951) is an American investor and author.  He received his B.A. in History, Philosophy, and Sociology from Northwestern University.  Pardo is a recognized expert in the design and testing of trading strategies and computerized trading applications.  He began his career developing systematic trading software in the early 1980s.  He wrote the first edition of Design, Testing, and Optimization of Trading in 1991 and released the second edition in 2008 published by Wiley Trading.  He had originally discussed the concept of Walk Forward Optimization which is an important aspect in present trading markets.

Public holidays in the United Kingdom: Public holidays in the United Kingdom are days where most businesses and non-essential services are closed, although an increasing number of retail businesses (especially the larger ones) do open on some of the public holidays.  There are restrictions on trading on Sundays and Christmas Day in England and Wales and on New Year's Day and Christmas Day in Scotland.  Legally defined holidays, analogous to "public holidays" in many other countries, are usually called bank holidays in the United Kingdom, but can also be referred to as "public holidays"; strictly, however, "public holidays" refer to "common law holidays", the observance of which derive from custom and practice (see "Terminology" below).

Tip and Trade: Tip and Trade is a 2011 book by Canadian author Mark Coakley that depicts an insider trading conspiracy involving Wall Street lawyer Gil Cornblum and another lawyer, Stan Grmovsek, who were found to have gained over $10 million in illegal profits over a 14-year span.  The crime was detected in 2008.  Cornblum committed suicide before criminal charges were laid.  Grmovsek pleaded guilty and was sentenced to 39 months in prison.  This was the longest term ever imposed for insider trading in Canada.

Anne-Marie Baiynd: Anne-Marie Baiynd (born January 11, 1966) is an American author, financial analyst, technical analyst.  Baiynd published her Market Positioning System (MPS) in 2011 to educate beginning day traders on the tools and techniques that have her listed in "Traders At Work: World's Most Successful Traders Make Their Living in the Markets".  Baiynd runs a day trading room where subscribers can follow her trades online and provides swing trading set-ups as well as trading education through her web site.

Trailing twelve months: Trailing Twelve Months (TTM) is a measurement of a company's financial health used in finance.  It is measured by using the income statements from a company's reports (such as interim, quarterly or annual reports), to calculate the income for the twelve-month period immediately prior to the date of the report.  This figure is calculated by analysts because quarterly and interim reports often show only income from the preceding 3, 6 or 9 months, not a full year.  Because it does not represent a full year, this data can be skewed by seasonal trading patterns, such as higher sales over Christmas, giving a less accurate picture of a company's fiscal health.

Debbie Macomber: Debbie Macomber (born October 22, 1948 in Yakima, Washington) is an American author of romance novels and contemporary women's fiction.  Four of her novels have become made-for-TV movies.  Macomber was the inaugural winner of the fan-voted Quill Award for romance in 2005 and has been awarded both a Romance Writers of America RITA and a lifetime achievement award by the Romance Writers of America.

Supporting paragraphs: Trading Christmas Debbie Macomber
Answer: 1948