Jon Marks began learning the piano at the age of 7. The lessons discontinued at age 12 when interest in New Orleans Jazz and improvisation occupied his practice time. His brother David Marks played the banjo. When he was 14 Dave took Jon to a jazz gig where he snuck in behind the piano and played for the first time in public - he never looked back. Later, Jon was fortunate to work together with Alton Purnell and received musical assistance and inspiration from him from 1964 until Purnell's death in 1987 . Other major influences included pianists Joe Robicheaux, Lester Santiago and James "Sing" Miller. Marks formed a school band at age 12 and at 15 was co-leader of a semi-pro jazz band, the "San Jacinto Jazz Band" in Portsmouth. Jon's first professional band was the "Keith Smith Climax Jazz Band" which facilitated a move back to London in 1964 when he joined them aged 17.
Tours and festivals
Marks toured Europe and Britain, and recorded with Keith Smith before joining Barry Martyn's Band in 1968. He stayed with Martyn until the band's demise in 1973 due to Martyn's migration to the USA. He played with Kid Martyn's Ragtime Band at the first two New Orleans Jazz & Heritage Festivals in 1968 and 1969 and at Louis Armstrong's 70th Birthday celebration, "Hello Louis", in 1970 when he was photographed alongside Louis Armstrong and his enormous birthday cake, and whiskey and bourbon fountains. Marks toured the US annually with Martyn six years running, using New Orleans as the finishing point where he could gain valuable experience at Preservation Hall and other local venues. After 1973 he free-lanced working with various units including the White Eagle Band of Berlin with the late clarinetist/saxophonist Peter Müller and trumpeter Raimer Lösch. Marks also played with Kid Thomas, clarinetist/saxophone player Sammy Rimington, and the Louis Nelson Band, among others. Marks made his home-base in Berlin, Germany in the late 1970s from where he produced recordings and played with his own New Orleans Jazz trio. During the 1980s he began touring with Sammy Rimington's Band again and also toured with the White Eagle Band, Berlin, and the Maryland Jazz Band, Cologne. Together with Rimington, in 1983 he toured with Kid Thomas' Algiers Stompers in Europe, the last tour of this legendary band. He also toured with Louis Nelson's band in Switzerland in 1987. He was an annual guest of the Big Easy Jazz Band in Connecticut during the 1990s, touring and recording in New England and the Tri-State area and appearing at the 1991 Santa Rosa Festival, California. He again appeared at the New Orleans Jazz Festival in 1996 with Sammy Rimington. Jon played regularly at the Ascona New Orleans Jazz Festival in Switzerland.