Following Sharp 's efforts , the Zong massacre became an important topic in abolitionist literature .
The massacre was discussed in works by Thomas Clarkson , Ottobah Cugoano , James Ramsay and John Newton .
Following Sharp 's efforts , the Zong massacre became an important topic in abolitionist literature and the massacre was discussed in works by Thomas Clarkson , Ottobah Cugoano , James Ramsay and John Newton .