Brother duos

Jan Martel (5 March 1896 – 16 March 1966) and Joël Martel (5 March 1896 – 25 September 1966) were French sculptors and identical twin brothers. The twins were born in Nantes and were among the founding members of Union des Artistes Modernes (UAM). Their works include ornamental sculptures, statues, monuments and fountains displaying characteristics typical of the Art Deco and Cubist periods. Their work was part of the sculpture event in the art competition at the 1948 Summer Olympics.

Brothers James Lloyd "Jim" Mitchell (November 30, 1943 in Stockton, California – July 12, 2007 in Petaluma, California) and Artie Jay Mitchell (December 17, 1945 in Lodi, California – February 27, 1991 in Marin County, California) were American entrepreneurs. They operated in the pornography and striptease club business in San Francisco and other parts of California from 1969 until 1991 when Jim was convicted of killing Artie.They opened the O'Farrell Theatre in 1969 as an adult cinema and at one time operated 11 such businesses. They produced and directed many adult films, including Behind the Green Door in 1972. They were also successful as defendants in many obscenity cases. Their notoriety significantly increased with Jim's fratricide and they became the subject of three books, X-Rated, Bottom Feeders, and 9½ Years Behind the Mitchell Brothers' Green Door and the movie Rated X.