This author of A Practical view of the Prevailing Religious System of Professed Christians and member of the Clapham Sect famously met with William Pitt under an oak tree at Holwood.
This author of A Practical view of the Prevailing Religious System of Professed Christians and member of the Clapham Sect famously met with William Pitt under an oak tree at Holwood. FTP, name this British reformer who fought to abolish slavery in the early 19th century. 
This author of A Practical view of the Prevailing Religious System of Professed Christians and member of the Clapham Sect famously met with William Pitt under an oak tree at Holwood.
William Wilberforce