In April 1783 , he sent an account of the massacre to William Dillwyn , a Quaker , who had asked to see evidence that was critical of the slave trade .
Despite these setbacks , Sharp 's efforts did have some success .
In April 1783 , Sharp sent an account of the massacre to William Dillwyn , a Quaker , who had asked to see evidence that was critical of the slave trade .
Despite these setbacks , Sharp 's efforts did have some success .