White House Christmas tree have had the first indoor Christmas tree at the White House during the 1850s, variously reported as 1853 or 1856. Others claim the first tree was during President Benjamin Harrison's administration (either in 1888, 1889, or 1891). First Lady Caroline Harrison helped decorate the tree, which was installed in the second floor oval parlor today's Yellow Oval Room. There is an 1880 reference to President John Tyler in the 1840s, hosting a children's party at which there was a Christmas tree with gifts. Following the Harrison administration indoor trees were not always used at the White House. First Lady Lou
Pierce-Klingle Mansion Pierce-Klingle Mansion Pierce-Klingle Mansion, also known as Linnaean Hill, is a historic house in Rock Creek Park in Washington, D.C. It has been listed on the District of Columbia Inventory of Historic Sites since 1964 and it was listed on the National Register of Historic Places in 1973. It is a contributing property in the Rock Creek Park Historic District. Joshua Pierce built the house in 1823 and named it Linnaean Hill after Carl Linnaeus, the Swedish botanist. Pierce, himself a horticulturist, introduced the box garden to Washington and supplied the first ornamental plantings to the White House, United States