Research question: cocoa estates in southern Trinidad 1930s-1940s by kirk_pos

Posting this partly because someone here might know something, and partly because writing it out helps me think. I'm working on a novel set on a cocoa estate in the Paramin/Brasso Seco area of Trinidad, running from roughly 1935 to 1950. The historical record on these estates is thinner than I expected. There's good material on sugar, a reasonable amount on the 1937 labour uprising, but for cocoa specifically, the family histories and the labour conditions on the small-to-medium estates, I'm working with fragments. I've been reading V.S. Naipaul's early work for atmosphere, which I know is a complicated source in various ways. I've got Lloyd Best's economic writing. I've dug into some Trinidad Guardian archives from the period (strange experience, reading the paper I used to write for from eighty years ago). If anyone has come across primary sources, memoirs, estate records, anything from this period in the Caribbean context, I would be grateful. And if anyone has thoughts on how much license a novelist can reasonably take when the documentary record is incomplete, that's also on my mind.