I don't know if this will help you with you request, but perhaps you can help me.My grandmother was born in or near St. Catherine, Jamaica, in 1885. Her name was Beatrice Roseland Adelaide Thelwell.She died in 1985.She was 18th child of 19.I only know the names of the sisters immediately older and younger than her.The older was named Eugene and the younger was names Maudlin.Eugene married a man named Mullens (I think) and Maude married a man named Wright.
My grand mother had 4 children Berle (now living in Dominica and widowed to a man named Harris), a son that died in childhood (name unknonw to me), Walter (who died in the early 1950's), and Winifred (my mother, widowed to a man named Hylton and re-married to amn named Meghoo).My mother and her sister both have the middle name of Thelwell.I'm seeing a pattern with your GGrandmother.
I remeber hearing something about us having some relationship to a family named Spence.My older brother married a woman named Catherine Spence who's family I believe was originally from around the area of St. Catherine's.I know your Ggrandmother was Spencer, but sometime names change over time or there's no connection at all.
If you know any more that I do please fill me in, if not maybe this information can be of some help to you.