[2] She had a brother, Harold Roper, and two half-brothers named Frank and Ernest Samson, who were a product of Lucy's previous marriage.

[2][5] Roper aided James Walter White, another botanist, in compiling a Flora of Bristol, which was published in 1912.

White acknowledged Roper for her "trustworthy and energetic help...for fieldwork...and assistance in literary research and in revision and correction of the press.

This movement indicates that the Ropers were upper middle class, based on the postal codes of the areas they moved to.

She died on 8 June 1935 in a nursing home after falling ill, and is buried with her family at Arnos Vale Cemetery in Bristol.