Missionary Rev T Henderson d prior 1883

[GramH]

Attempting to glean any info on  Rev Thomas Henderson who died prior to 1883 'late of Aberdeen'. Reportedly a minister in Edinburgh and therefore likely to be a missionary in British Guiana circa 1852 where my G Grandfather was born. Married Mary Anne Leslie - Family of 3 female, Alice, Charlotte, Joan,+ 1 male Thomas Saville Henderson who came to NZ in 1875. Currently up against a brick wall and any information appreciated.