Clement C. Moore (Author of The Night Before Christmas)Clement Clarke Moore, (July 15, 1779 – July 10, 1863), is best known as the credited author of A Visit From St. Nicholas (more commonly known today as Twas the Night Before Christmas).
Clement C. Moore was more famous in his own day as a professor of Oriental and Greek literature at Columbia College (now Columbia University) and at General Theological Seminary, who compiled a two volume Hebrew dictionary. He was the only son of Benjamin Moore, a president of Columbia College and bishop of the Episcopal Diocese of New York, and his wife Charity Clarke. Clement Clarke Moore was a graduate of Columbia College (1798), where he earned both his B.A. and his M.A.. He was made professor of Biblical learning in the General Theological Seminary in New York (1821), a post that he held until 1850. The ground on which the seminary now stands was his gift.  From 1840 to 1850, he was a board member of The New York Institution for the Blind at 34th Street and 9th Avenue (now The New York Institute for Special Education). He compiled a Hebrew and English Lexicon (1809), and published a collection of poems (1844). Upon his death in 1863 at his summer residence in Newport, Rhode Island, his funeral was held in Trinity Church, Newport, where he had owned a pew. Then his body was interred in the cemetery at St. Lukes Episcopal Church on Hudson St., in New York City. On November 29, 1899, his body was reinterred in Trinity Churchyard Cemetery in New York.
The Moore house, Chelsea, at the time a country estate, gave its name to the surrounding neighborhood of Chelsea, Manhattan, and Moores land in the area is noted today by Clement Clark Moore Park, located at 10th Avenue and 22nd Street. The playground there opened November 22, 1968, and it was named in memory of Clement Clarke Moore by local law during the following year. The 1995 renovations to Clement Clarke Moore Park included a new perimeter fence, modular play equipment, safety surfacing, pavements and transplanted trees. This park is a popular playground area for local residents, who gather there the last Sunday of Advent for a reading of Twas the Night Before Christmas. 
Much of the neighborhood was once the property of Maj. Thomas Clarke, Clements maternal grandfather and a retired British veteran of the French and Indian War. Clarke named his house for a hospital in London that served war veterans. Chelsea was later inherited by Thomas Clarkes daughter, Charity Clarke Moore, and ultimately by grandson Clement and his family. Clement Clarke Moores wife, Catharine Elizabeth Taylor, was of English and Dutch descent being a direct descendant of the Van Cortlandt family, once the major landholders in the lower Hudson Valley of New York.
As a girl, Moores mother, Charity Clarke, wrote letters to her English cousins that are preserved at Columbia University and show her disdain for the policies of the English Monarchy and her growing sense of patriotism in pre-revolutionary days.
The Moore children have several living descendants among them members of the Ogden family. In 1855, one of Clements daughters, Mary C. Moore Ogden painted illuminations to go with her fathers celebrated verse. A book with her paintings as illustrations is A Visit from St. Nicholas (Twas the Night Before Christmas). Copyright 1995 by International Resourcing Services, Inc., 60 Revere Drive, Suite 725, Northbrook, Illinois, 60062.
Clement Clarke Moore was a scholar of ancient languages who is remembered today because of a poem he wrote to amuse his children. And over the past years there have been hotly disputed claims that Moore did not really write the famous poem. If you accept that Moore was the author, then, along with Washington Irving , he helped to create the character of Santa Claus. As the poem gained popularity over several decades in the mids, Moore's depiction of Santa Claus became central to how others portrayed the character. The poem has been published countless times and the reciting of it remains a cherished Christmas tradition. Perhaps no one would be more surprised by its enduring popularity than its author, who was, during his lifetime, highly regarded as a very serious professor of difficult subjects. According to an account Moore gave to the New York Historical Society when he was in his eighties and presented them with a hand-written manuscript of the poem, he had first written it simply to entertain his children he was the father of six in
A Visit from St Nicholas - Clement Clarke Moore - Twas the Night Before Christmas
Located on land donated by the "Bard of Chelsea" himself, the seminary still stands today on Ninth Avenue between 20th and 21st Streets, in an area known as Chelsea Square. Moore's connection with that institution continued for over twenty-five years. He is the author of the yuletide poem "A Visit from St. Nicholas", which later became famous as "'Twas the Night Before Christmas". This estate would later pass to Charity Clarke and then to Moore, but he grew up in the Moore family residence in Elmhurst, Queens. He was a graduate of Columbia College , where he earned both his B.