[2] In 1880 Thomas wrote a memoir of Charles Summers, her first master, A Hero of the Workshop, and in the same year completed a bust of him for the shire hall, Taunton.

Thomas is also believed to have painted a number of middle eastern watercolours with a curious monogram consisting of an inverted L or Greek gamma (Γ) over a gothic M. In 1888, Thomas left England for Brittany and subsequently Rome, accompanied by her long-term companion Henrietta Pilkington (1848-1927).

During the 1890s, they travelled throughout the Middle East and her book A Scamper through Spain and Tangier (1892) was dedicated to My dear friend, the companion of these wanderings.

In 1902 appeared an interesting little book, Denmark Past and Present, which was followed by How to Judge Pictures (1906), and a collection of her verse, A Painter's Pastime (1908).

The pair moved to Norton, Hertfordshire in 1911, living in a cottage known as Countryside in Croft Lane, where Thomas died on 24 December 1929, the day after her 87th birthday.