During 1894 and 1895 Bertha visited North America and Cuba, this file contains the letters she sent to her sister Dora Trench during this time.

In a letter dated 4 November 1894 she writes about Niagra falls,' Friday was a glorious day day, warm & bright. I spent all of it sitting in the sun, looking at the Falls from various points of view. I was not disappointed in them. They are grand in spite of everything having been done to spoil the place. There are great factories close by, worked by the water, the banks are linded with lifts & railways of all sorts to pull you up & down. You are pursued by guides & drivers & men selling shell boxes, photos & mugs with "Niagara" on there, as mementos & a huge advertisement of "Carters little Liver pills" is just above one fall!..'

She also writes of her disappointment with Cuba, ' ... I am much disappointed in Havana. There is nothing to remind one, one is in the tropics except the heat. It is just like Marseilles are one of the Sout European towns the same narrow ill paved streets, & the same street houses with the plaster peeling of & muels with bells and tassels, only there are no beautiful mountains & no interesting buildings & hardly any trees, which most tropical towns have...'