Its taken a bit of time, but I now have Barbados baptism and marriage records for everyone with the surname of Gittens on my web site www.gittensfamily.ca . The period covered is from the mid 1600's until about 1890.
Most of the new data is from the 1830's until 1890 which includes the post emancipation era. Although there are some 3 generation family units re-constructed from the data in this period, there is still quite a bit of work to do in this area. It will be a continuing work in progress.
During the 60 years between 1830 and 1890 there were 2,351 Gittens baptisms in Barbados and 541 Gittens marriages. Annual averages were 39 baptisms and 9 marriages.