Lady Mary Hobhouse (1825-1905) was the wife of Baron Hobhouse and daughter of Thomas Farrer. She travelled extensively, leaving behind an album of watercolours depicting various European, Scottish and English landscapes.

Reference:

http://www.open.ac.uk/researchprojects/makingbritain/content/mary-hobhouse

https://sulisfineart.com/mary-hobhouse-1858-watercolour-isle-of-arran-scotland.html

https://sulisfineart.com/1858-watercolour-glen-rosa-landscape.html