Wikipedia:
Botho Lucas (* June 2, 1923 in Köslin, Pomerania; † May 15, 2012 in Cologne) was a German accordionist, composer and choirmaster. He also wrote smaller arrangements. His first gigs were with the Köslin band ''5 Tango'' which played at the ''Deutsche Eiche'' restaurant in Rogzow. In 1940 he went to Berlin. Here he played smaller gigs in music quartets consisting of a violin duo, saxophone and accordion in Berlin clubs. In 1942, he was drafted into military service and was taken prisoner of war by the Soviets in 1944.
Lucas returned to Berlin in 1949 and initially worked as a solo entertainer on the accordion. A little later, he founded the ''Lucas Trio''. The trio broke up due to a death. Lucas initially formed a trio again, but soon expanded it into a pure vocal quartet. In addition to Lucas, this formation included the tenor Bernd Golonsky, the baritone Günter Kallmann and the bass Ralf Paulsen.
In 1959, Lucas shifted his artistic focus from Berlin to Cologne, where he worked with his quartet as a studio choir for "Musikproduktion West". The Botho Lucas Choir emerged from this in 1961. Lucas' greatest successes from this period include the ''Berlin Polka'' and the Christian song ''Danke für diesen guten Morgen'' with which Martin Gotthard Schneider had previously won the competition for new spiritual songs at the ''Evangelische Akademie'' in Tutzing.

In addition to numerous well-known artists, Lucas also worked with various children's choirs and was the manager and producer of "Sonntagskinder" and "Euro Cats", which also included Anke Engelke.
Lucas remained attached to his Pomeranian homeland, which had become part of Poland after the Second World War. A few years before his death, he created a CD for his compatriots who had been expelled from Köslin. After his death, his partner said: "Half of his soul has always remained in Pomerania".

Note: Translated from a German version of Wikipedia into English.