She is known for her geological work assisting her husband Edward Greenly in his surveying of Scotland and Anglesey, as well as being an accomplished artist and animal rights' representative.
Their families were acquainted and encouraged the growing friendship between the two, which was built on philosophical and poetic exchanges and Edward's scientific studies.
[4] On top of her scientific role, Annie Greenly was a contralto singer, pianist, and a long-standing member of her local branch of the North Wales RSPCA.
[1] Edward Greenly (and with him, Annie to a lesser extent) was a mystic who shifted from Evangelicalism to pantheistic religion and Buddhism.
She took control of logistics, arranged lodgings and facilities, prepared powdered mineral specimens, and proofread and edited his writing extensively.
When the author was examining cuttings in Anglesey, Annie Greenly always came with him as train-watcher and with her at the top of the bank he was able to concentrate on the geology.
Edward Greenly documents her continuous support: "some sheets she pronounced to be hopeless and these […] she rewrote altogether…we worked on opposite sides of the table, I writing, she doctoring.
Greenly was meticulous in the reading and editing of her husband's manuscripts, finishing a final piece of work only a week before her death.