Question: What was the founder of the Material World Charitable Foundation often referred to as?

Context paragraphs:
James G. Boswell Foundation: The James G. Boswell Foundation is the charitable foundation established in 1947 by James Griffin Boswell (May 13, 1882–1952), founder of the J. G. Boswell Company, a successful farm and agricultural supplies enterprise established in Corcoran, California in 1921.  The Foundation supports agricultural, general education, health concerns, pre-college private schools, public broadcasting, rural affairs groups and youth organizations.  The Foundation has also provided support for the Institute for Agricultural Genomics at the University of California, Riverside.

Concert for George: The Concert for George was held at the Royal Albert Hall in London on 29 November 2002 as a memorial to George Harrison on the first anniversary of his death.  The event was organised by Harrison's widow, Olivia, and son, Dhani, and arranged under the musical direction of Eric Clapton and Jeff Lynne.  The profits from the event went to the Material World Charitable Foundation, an organisation set up by Harrison.

Social interaction in MMORPGs: Social interactions in MMORPGS take the form of in-game communication, virtual behaviors, and the development of interpersonal and group relationships.  In "massive multiplayer online role-playing games" (MMORPGs), cooperation between players to accomplish difficult tasks is often an integral mechanic of gameplay, and organized groups of players, often called guilds, clans, or factions, emerge.  Sometimes the relationships players from within the game spill over into friendships or romantic relationships in the material world.  In other instances, romantic partners and groups of material world friends find that playing together strengthens their bonds.

The Lord Loves the One (That Loves the Lord): "The Lord Loves the One (That Loves the Lord)" is a song by English musician George Harrison, released on his 1973 album "Living in the Material World".  Like the album's title track, it was inspired by the teachings of A.C. Bhaktivedanta Swami Prabhupada, founder of the International Society for Krishna Consciousness (ISKCON), more commonly known as the Hare Krishna movement.  The song is an uptempo rock track with elements of blues and gospel.  Some commentators have described it as the musical highpoint of "Living in the Material World", with Harrison's slide guitar playing singled out as being among the finest performances of his career.

Material World Charitable Foundation: The Material World Charitable Foundation (MWF) is a charitable organisation founded by English musician George Harrison in April 1973.  Its launch coincided with the release of Harrison's album "Living in the Material World" and came about in reaction to the taxation issues that had hindered his 1971–72 aid project for refugees of the Bangladesh Liberation War.  Harrison assigned his publishing royalties from nine of the eleven songs on "Living in the Material World", including the hit single "Give Me Love (Give Me Peace on Earth)", to the foundation, in perpetuity.

Sherman Fairchild Foundation: The Sherman Fairchild Foundation, founded in 1955, is a charitable foundation of Sherman Mills Fairchild, founder and chairman of many Fairchild Corporations.  Fairchild formed two charitable Foundations, the Fairchild Foundation and the Sherman Fairchild Foundation during his lifetime.  Upon his death on March 28, 1971 he left the bulk of his 200+ million dollar estate to his Foundations.

Ravi Shankar's Music Festival from India: Ravi Shankar's Music Festival from India was an Indian classical music revue led by sitarist and composer Ravi Shankar intended for Western concert audiences and performed in 1974.  Its presentation was the first project undertaken by the Material World Charitable Foundation, set up the previous year by ex-Beatle George Harrison.  Long a champion of Indian music, Harrison also produced an eponymous studio album by the Music Festival orchestra, which was released in 1976 on his Dark Horse record label.  Both the CD format of the Ravi Shankar's Music Festival from India album and a DVD of their performance at the Royal Albert Hall in London were issued for the first time on the 2010 Shankar–Harrison box set "Collaborations".

George Harrison: George Harrison, {'1': ", '2': ", '3': ", '4': "} (25 February 1943 – 29 November 2001) was an English guitarist, singer-songwriter, and producer who achieved international fame as the lead guitarist of the Beatles.  Often referred to as "the quiet Beatle", Harrison embraced Hinduism and helped broaden the horizons of his fellow bandmates as well as their American audience by incorporating Indian instrumentation in their music.  Although most of the Beatles' songs were written by John Lennon and Paul McCartney, most Beatles albums from 1965 onwards contained at least two Harrison compositions.  His songs for the group included "Taxman", "Within You Without You", "While My Guitar Gently Weeps", "Here Comes the Sun" and "Something", the last of which became the Beatles' second-most covered song.

Concert for George (film): Concert for George is a 2003 British documentary film directed by David Leland that covers the events of the Concert for George, a tribute concert for George Harrison held at the Royal Albert Hall in London on 29 November 2002.  A benefit for Harrison's Material World Charitable Foundation, the all-star concert took place on the day of the first anniversary of his death.

Varkey Foundation: The Varkey Foundation, initially the Varkey GEMS Foundation, is a global charitable foundation focused on improving the standards of education for underprivileged children.  It was formed in 2010 by Sunny Varkey, the founder and chairman of GEMS Education, the world's largest operator of kindergarten-to-grade-12 schools.  The foundation's main focuses are improving global teacher capacity by training tens of thousands of teachers and principals in developing countries; providing access to education via a variety of programmes and projects; and advocating for change in, and conducting research that can help develop, education policies worldwide.

Supporting paragraphs: Material World Charitable Foundation George Harrison
Answer: the quiet Beatle