Hélène (Helena) Gustava Tham (née Murray) was born on 16 December 1843 in Stockholm, and died there on 26 July 1925 and is among the pioneers of female composers. Information about her as a musician and composer is vague, even though relatively many of her musical works have been preserved. She evidently composed from an early age and published both songs and piano pieces. She was married to factory manager and member of parliament, Vollrath Tham.

Source: https://www.swedishmusicalheritage.com/composers/tham-helene/