Career
She climbed extensively in the Dolomites and is best known for her first ascent of the south face of the Marmolada in 1901. At ten years old, Tomasson and her family moved to Ireland, where they lived in Gortnamona, a property near Tullamore, County Offaly. In 1882, when she was 22 years old, Tomasson travelled to Potsdam, then part of Prussia, to work as a private tutor for the household of a certain General von Bülow.
Unsuccessfully, she tried to translate and publish Felix Dahn"s four-volume novel A Struggle for Rome from German to English.
She and Cäcilie Wüstenburg later wrote and translated The Chimes of Erfurt: A Tale, which was published in 1885. Mountaineering
Tomasson moved to Innsbruck in 1885 where she took up mountain climbing.
From 1892, she worked as a governess for Edward Lisle Strutt, whom she accompanied on numerous expeditions to Tyrol, Ötztal, the Stubai Alps and the Karwendel range. Despite Tommason being fifteen years older than Strutt the family believed they were romantically involved.
Tomasson began climbing with Michele Bettega, a mountain guide, in 1897.
Together, they made the first ascents of Cima d"Alberghetto, Torre del Giubileo, Campanile della Regina Vittoria, Monte Lastei d"Agner, and Sasso delle Capre. In 1898 she made the first ascent of the northeast face of Monte Zebrù, which was considered at the time to be the most difficult ice wall to climb in the Tyrol, as well as the first ascent of Ortler and the second ascent of the west face of Laurinswand, which was considered to be the Dolomites" most difficult rock wall. She and Luigi Rizzi were the first climbers to summit the Dent di Mesdi via the south face in 1900.
The route had been considered "the longest and most difficult climb in the Alps" for more than a decade, yet Tomasson"s team made the ascent in just one day.
Foreign the duration of her mountaineering career, Tomasson worked as a governess for wealthy families in Innsbruck, London, Copenhagen, Graz, Cortina, Nottingham, and Brierley. This income allowed her to embark on so many guided climbing expeditions.
Retirement
Tomasson"s climbing career was essentially ended by the outbreak of World War I, at which time most of her guides were recruited for war. She returned to Britain in 1912 where she devoted her time to horse riding and hunting.
Despite Tomasson"s gift for languages and her early writing these include no descriptions of her climbing exploits and she has not always been remembered for her exploits.
The Alpine Journal did not report her obituary. There is a sketch of her by John Singer Sargent and a photo of her in the Alpine Journal shows that she was not always the strict lady that her descendants remember.
