Written by Kanchi Mehta, 2nd year BSc student, Swansea University, whilst on placement at National Museum Cardiff and Swansea Museum.

Born in Swansea in June 1839, the young Mary grew up in a house where she had every freedom. Taught in politics, photography, languages, art and science, young Mary was a smart, outspoken, and opinionated girl. As she grew up, she learnt from her father, Lewis Llewelyn Dillwyn, in the forests and beaches around Swansea. Over the years, she took a particular interest in the biology around her family home and kept that interest throughout her life.

She married in Sketty Church to John Cole Nicholl in 1860. He shared her adoration for the outdoors and over the course of their honeymoon the couple went all over Europe seeing the sights, scaling every mountain they could and documenting it all in their diaries. Mary alone filled roughly six diaries with her thoughts on the nature she saw, the people she met and the languages she learnt all accompanied by her sketches. By the Christmas of 1860, the pair made it home with two puppies in tow, brought for Mary by John, and a baby on the way.