This study is an attempt to look behind the scenes at the self-effacing man, Zachary Macaulay one far less known than Wilberforce or his famous son, Thomas Babington Macaulay and to correct the imbalance of the record. It is an endeavour to assess in some measure Zachary Macaulay s enormous contribution to the abolition of both the slave trade and of slavery itself in the British Dominions. More than all, as Macaulay himself would have wished, we seek to give God the glory for raising up such a man at so critical a juncture of British national history.