what did she do in the caribbean?
She cared for her "old indulgent patroness" who gave financial support to her;  She was occasionally called to provide nursing assistance at the British Army hospital at Up-Park Camp; She married Edwin Horatio Hamilton Seacole in Kingston
Mary Seacole
After returning to Jamaica, Seacole cared for her "old indulgent patroness" through an illness, finally returning to the family home at Blundell Hall after the death of her patroness (a woman who gave financial support to her) a few years later. Seacole then worked alongside her mother, occasionally being called to provide nursing assistance at the British Army hospital at Up-Park Camp. She also travelled the Caribbean, visiting the British colony of New Providence in The Bahamas, the Spanish colony of Cuba, and the new republic of Haiti. Seacole records these travels, but omits mention of significant current events, such as the Christmas Rebellion in Jamaica of 1831, the partial abolition of slavery in 1834, and the full abolition of slavery in 1838.

She married Edwin Horatio Hamilton Seacole in Kingston on 10 November 1836. Her marriage, from betrothal to widowhood, is described in just nine lines at the conclusion of the first chapter of her autobiography. Robinson reports the lege
who was mary seacole? A British-Jamaican nurse, healer and businesswoman who set up the "British Hotel" behind the lines during the Crimean War. where was she born? Kingston, Jamaica
wiki:14109436
Mary Seacole [SEP] In the Caribbean, 1826–51
After returning to Jamaica, Seacole cared for her "old indulgent patroness" through an illness, finally returning to the family home at Blundell Hall after the death of her patroness (a woman who gave financial support to her) a few years later. Seacole then worked alongside her mother, occasionally being called to provide nursing assistance at the British Army hospital at Up-Park Camp. She also travelled the Caribbean, visiting the British colony of New Providence in The Bahamas, the Spanish colony of Cuba, and the new republic of Haiti. Seacole records these travels, but omits mention of significant current events, such as the Christmas Rebellion in Jamaica of 1831, the partial abolition of slavery in 1834, and the full abolition of slavery in 1838.