The Lennon Sisters are an American vocal group made up of four sisters. The quartet originally consisted of Dianne (aka DeeDee; born Dianne Barbara, December 1, 1939), Peggy (born Margaret Anne, April 8, 1941), Kathy (born Kathleen Mary, August 2, 1943), and Janet (born Janet Elizabeth, June 15, 1946). From 1955 to 1968, the group appeared regularly on The Lawrence Welk Show (receiving union scale wages) before having their own television variety show, called Jimmy Durante Presents the Lennon Sisters, with Jimmy Durante. After the show was cancelled, they partnered with Andy Williams to create a successful Las Vegas residency, which lasted a decade. In 1999, younger sister Mimi (born Miriam Theresa, October 16, 1955) replaced Peggy upon the latter's retirement. DeeDee has also since retired. The current line-up of the Lennon Sisters is a trio consisting of Kathy, Janet, and Mimi. They continue to tour around the country and, until recently, performed annually with their Christmas show at The Andy Williams Moon River Theatre in Branson, Missouri. In 2001, they were inducted into the Vocal Group Hall of Fame. Early life The Lennon Sisters were born into a family of twelve children (seven sisters and five brothers), all born in Los Angeles, California. Their youngest sister, Mary Frances, died in infancy in 1954 after being struck by a speeding car. Their parents married in early 1939. Their father, William Herbert Lennon (1915–1969), worked as a milkman for many years before getting a job at a local golf course. Their mother, Isabelle Emily "Sis" (1919–2005), remained at home to care for the needs of her very large family. Sis was the daughter of Reina Ysabella Alvarez Denning and Danforth Denning. Their ancestry was a mixture of Mexican, Spanish, German, and Irish. Isabelle's maternal grandfather, Pablo Alvarez (1857–1905), was born in Santa Ana, California, and her maternal grandmother, Margarita Camacho (1864–1938), was from Wilmington, California. Pablo's great-great-great-grandfather, Bernardo Salgado De Oliberos, was born in San Andrés, Spain. During their formative years, the family, which included two parents, eleven children, and one grandmother, lived in Venice, California, in a modest two-bedroom home. They were and are devout Roman Catholics and attended the Church of St. Mark, which is part of the Los Angeles Archdiocese. Most or all of the children attended Catholic school. Throughout the Lennon Sisters' career, their faith has had a major influence in both their lives and their careers.