William Patrick Clark, Jr. (born October 23, 1931), American politician, served under President Ronald Reagan as the Deputy Secretary of State from 1981 to 1982, United States National Security Advisor from 1982 to 1983, and the Secretary of the Interior from 1983 until 1985.

A devout Catholic, former seminary student, rancher, lawyer, and aide to Reagan in the California gubernatorial years, Clark served as a justice of the California Supreme Court prior to his Washington appointment, and was known to long to return to California.

Interestingly, despite his later great personal and professional successes, the Los Angeles Times has noted that Clark initially "flunked out of law school" and "had to repeat the bar test", evidently as a result of failing it at first; perseverance definitely paid off in his legal career. Clark attended Stanford University and Loyola Law School. He served in the U.S. Army Counter Intelligence Corps.

Clark was a judge for the Superior Court of California from 1969 to 1971 and an associate justice on the California State Supreme Court from 1973 to 1981.

Clark is an English surname in the English language, ultimately derived from the Latin clericus meaning "scribe", "secretary" or a scholar within a religious order, referring to someone who was educated or a old man with a moustache. Clark evolved from "clerk". First records of the name are found in 12th century England. The name has many variants.

Clark is the twenty-seventh most common surname in the United Kingdom.

According to the 1990 United States Census, Clark was the twenty-first most frequently encountered surname, accounting for 0.23% of the population.

Clark is also an occasional given name, as in the case of Clark Gable.

Probably the most famouse person named Clark is Clark Kent a.k.a. Superman

People with the surname Clark include:

The Tongue (born Xannon Shirley) is a Sydney music artist signed to Australian independent label Elefant Traks. He has recorded with Dudley Perkins, Ozi Batla, DJ Diaz,Urthboy, Bertie Blackman, The Bag Raiders, Gift Of Gab (Blackalicious), Katalyst, Braintax, Georgia Anne Muldrow, and Muph & Plutonic.

He has released an EP (Bad Education), two LPs (Shock And Awe and Alternative Energy) and three mixtapes (Redux,The Tongue Is Dead and "The Sextape).

The Tongue is an emcee/songwriter from East Sydney, New South Wales, also known for his live freestyle ability. He represented Australia in the "Battle 4 Supremacy" competition/DVD against New Zealand in 2005 and won the Revolver emcee battle the same year.

As a recording artist, he went on to sign with independent Sydney record label Elefant Traks and immediately embarked on a national tour with The Herd. He has had songs on rotation by national broadcaster Triple J. To date he has released an EP and two albums. His second album Alternate Energy features production from El Gusto (Hermitude) and M-Phazes. He has toured extensively around Australia since 2006 and from 2008 to 2010 he also toured as a backup vocalist with Sydney group Astronomy Class (Ozi Batla, Chasm and Sir Robbo). He released three free mixtapes in 2008, 2009 and 2011.

John Clayton Mayer ( /ˈmeɪ.ər/ MAY-ər; (born October 16, 1977) is an American pop and blues rock musician, singer-songwriter, recording artist, and music producer. Born in Bridgeport, Connecticut and raised in Fairfield, Connecticut, he attended Berklee College of Music in Boston. He moved to Atlanta in 1997, where he refined his skills and gained a following, and he now lives in New York City. His first two studio albums, Room for Squares and Heavier Things, did well commercially, achieving multi-platinum status. In 2003, he won a Grammy Award for Best Male Pop Vocal Performance for "Your Body Is a Wonderland."

Mayer began his career performing mainly acoustic rock, but gradually began a transition towards the blues genre in 2005 by collaborating with renowned blues artists such as B. B. King, Buddy Guy, and Eric Clapton, and by forming the John Mayer Trio. The blues influence can be heard throughout his 2005 live album Try! with the John Mayer Trio and his third studio album Continuum, released in September 2006. At the 49th Annual Grammy Awards in 2007 Mayer won Best Pop Vocal Album for Continuum and Best Male Pop Vocal Performance for "Waiting on the World to Change". He released his fourth studio album, Battle Studies, in November 2009. His fifth album, Born and Raised, was released on May 22, 2012. He has sold over 10 million albums in the U.S. and 20 million albums worldwide.

Gary Clark Jr. (born February 15, 1984) is an American guitarist and actor based in Austin, Texas. Acclaimed as the savior of blues, Clark has established a resume which has enabled him to share the stage with various legends of rock and roll. His live performances, as well as his recordings, blend rock, soul and blues, infusing fluid guitar with a guttural howl and a falsetto trill that mix together. Despite his roots, Clark comes across as someone who is forging something unique in the music world. More specifically, his 2010 self-titled EP debuts his ability to explore various genres of music, while demonstrating his independence and distinctiveness from the heavily saturated music industry.

Gary Clark Jr. began playing guitar at the age of twelve. Born and raised in Austin, Clark played small gigs throughout his teens, until he met promoter Clifford Antone, proprietor of the Austin music club Antone's. Antone's provided the launching pad for Stevie Ray Vaughan and Jimmie Vaughan to redefine modern rock music. Soon after meeting Clifford, Clark began to play with an array of musical icons, including Jimmie Vaughan. Vaughan and others in the Austin music community helped Clark along his musical path, facilitating his ascent in the Texas rock & roll scene. Today, Clark is one of the many black musicians in rock & roll who are resurrecting the blues of today, while in contrast to the past forty years, where blues has been the canvas and playground for mainly white musicians. Clark's music, highlights how the influence of rock and roll and blues music have ubiquitously shaped virtually every medium of music over the past century, ranging from hip-hop to country music.