Whitney Estate  The Whitney Estate was a plantation in Clarendon Parish, Jamaica. James Hakewill visited the estate during his tour of Jamaica 1820-1. The estate was 3,243 in extent, all of which was fertile. Edward Long wrote: ""The plantation(...) is one of the most celebrated for its fertility. It is a small dale surrounded with rocky hills, and so rich that it produces invariably three hundred hogsheads of sugar per annum, with so little labour upon it, that [the enslaved Africans] multiply sufficiently to keep up their stock, without having recourse to African recruits."