Johann Nicolaus Bach (No. 29) was University and Town organist at Jena, and after having travelled to Italy for study, returned to Jena, where he remained till his death at the age of eighty-four. He was an able composer, of whose works, however, only a mass remains, which is much praised by Spitta.
Johann Christoph Bach (No. 30) taught music in Hamburg, Rotterdam, and finally in England.
Johann Friedrich Bach (No. 31) succeeded J. Sebastian as organist at Mühlhausen, the only member of his family who is mentioned as unsatisfactory in character, he being given to drink. Gerber calls him by mistake Johann Christoph.
Johann Michael Bach (No. 32) was an organ-builder. He went to Sweden, and all traces of him were lost.
Johann Ludwig Bach (No. 33) held the post of capellmeister to the Duke of Sax-Meiningen. His compositions were highly valued by Johann Sebastian, who copied many of them. Hilgenfeldt distinguishes him as a fine church-composer.
Johann Samuel Bach (No. 34), and Johann Christian Bach (No. 35), settled at Sondershausen as musicians.
Johann Günther Bach (No. 36) was tenor singer and schoolmaster at Erfurt.
Johann Ernst Bach (No. 37) studied law and became a barrister, but was also an organist and composer. He died in 1781 as Capellmeister to the Count of Weimar.
Johann Friedrich Bach (No. 38) became a schoolmaster, as did also his brother Johann Ægidius (No. 39). Of Wilhelm Hieronymus (No. 40), nothing is known.
Johann Lorenz Bach (No. 41) was organist at Lahm in Franconia.