I am trying to research into my family tree to see if there is a link with the great Sewell dynasty..

My (Mums) family is originally from Clarendon in Jamaica; my great Grandfather(Walter Sewell) had a child with a Rebecca McRae. This was my Granddad - Gladstone Sewell. I would like to find out if there is any link to William Sewell and Mary McRae.
Also I would like to find out the names of Walter Sewell's and Rebecca McRae's parents.

Does anyone have any suggestions?