From another blogger
860 Horatio Swaby of Manchester, St. Elizabeth's Parish Jamaica was a registered voter, In Kellington, Yorkshire a monument inscription: stating that Joseph James Swaby esq of Montpellier, Jamaica, died October 3,1821 age 32 in Kilnsey, Yorkshire, son of Hon. Joseph James Swaby. On the same monument and inscription: Frederick Peat to Ann Margaret Eleanor Swaby of Eaton Square, March 5, 1842. Wm. Godfrey Morris m. Sarah Swaby 3 Aug. 1799, George Swaby of Arlington m. Mary Bruce of Brucefield, 7 May 1837, St. Eliz.parish, Will of Horatio Swaby probated 1889 Jamaica, Will of Henrietta Swaby probated 1902,
Jamaica, Web searches have found a lot of Swaby's in Girmsby & Marshchapel LIN, England and in Yorkshire. Sorry these are just fragments but I am trying to piece things together myself on the Peats and now Swabys