Question: Who commissioned the series of 12 monuments dedicated to the spirit of pioneer women along the Ocean-to-Ocean Highway?

<P0-S0> Madonna of the Trail is a series of 12 monuments dedicated to the spirit of pioneer women in the United States. <P0-S1>  The monuments were commissioned by the National Society of Daughters of the American Revolution (NSDAR). <P0-S2>  They were installed in each of the 12 states along the National Old Trails Road, which extended from Cumberland, Maryland, to Upland, California. <SEP> <P1-S0> The National Monument to the U.S. Constitution (also known as the Constitution Bicentennial Monument) is a monument commissioned of Australian artist Brett-Livingstone Strong by Warren E. Burger, Chairman of the Commission on the Bicentennial of the United States Constitution, to commemorate the 200th anniversary of the signing of the United States Constitution. <P1-S1>  One of a pair created by Strong to commemorate historic anniversaries, along with The United States Presidency Monument, it was dedicated by President Ronald Reagan at Independence Hall in Philadelphia on September 17, 1987. <P1-S2>  Both monuments are the property of the Global EventMakers,Inc., a Florida-based company with principal offices in Richmond, Virginia. <P1-S3>  The monument has been transported for display at several public events around the country and was scheduled to begin a twenty-city traveling exhibit as part of the Spirit of Freedom Tour beginning in September 2009. <P1-S4>  Due to poor economic conditions, The Tour never commenced; however the Monuments accompanying original replicas of the United States Constitution and Bill of Rights are being produced for placement in America's schools. <P1-S5>  All rights to the Constitution Monument and the Original Replicas of the Constitution were transferred to The American Constitution Spirit Foundation, a Virginia non-profit, in March 2010. <P1-S6>  The Foundation plans to find a permanent home for the monument during 2013. <SEP> <P2-S0> The Highway of Tears murders is a series of murders and disappearances of mainly aboriginal women along the 720 km (450 mi) section of Highway 16 between Prince George and Prince Rupert, British Columbia, Canada from 1969 until 2011. <P2-S1>  Highway 16 is northern British Columbia's east-west corridor, extending from Jasper in the east to Prince Rupert in the west. <P2-S2>  This route is a section of the Trans-Canada Yellowhead Highway, also known as the "Park-to-Park Highway", which spans across British Columbia, Alberta, Saskatchewan and Manitoba. <P2-S3>  There are numerous municipalities and twenty-three First Nations communities that border the Highway of Tears. <P2-S4>  The region is plagued with poverty and lack of public transportation, forcing its occupants to turn to hitchhiking as a form of transit. <P2-S5>  Police list the number of Highway 16 victims at nineteen, but estimates by aboriginal organizations range into the forties, largely because they include women who disappeared a greater distance from the highway. <SEP> <P3-S0>  It was 3096 mi long and stretched from Baltimore, Maryland (some old maps indicate New York City was the actual eastern terminus), to California. <P3-S1> National Old Trails Road, also known as the Ocean-to-Ocean Highway, was established in 1912, and became part of the National Auto Trail system in the United States. <P3-S2>  Much of the route follows the old National Road and the Santa Fe Trail.