In 1792, Dussek married the composer Jan Ladislav Dussek. Following Jan's death in 1812, Sophia married the violistJohn Alvis Moralt. The couple lived in Paddington, where she founded a music school. There have been numerous misattributions of her work, either from ignorance, or refusal to reject received wisdom. The opus 2 sonatas, however, were published in at least 3 editions in the 1790s by the Corri-Dussek company in London as by Madame Dussek, and there is no reason to doubt that the 6 sonatas of opus 2, including the famous C minor sonata published and misattributed by Schott as by JL, are anything but the work of Sophia. Paris editions of opus 2 published by Pleyell only bear the name Dussek, leading Zabaleta to his misattribution, but nobody actually claimed opus 2 as the work of JL rather than Sophia before the mid 20thC.