Read the excerpt from harriet tubman: conductor on the underground railroad. along the eastern shore of maryland, in dorchester county, in caroline county, the masters kept hearing whispers about the man named moses, who was running off slaves. at first they did not believe in his existence. the stories about him were fantastic, unbelievable. yet they watched for him. they offered rewards for his capture. in this excerpt, "moses” refers to which historical figure? frederick douglass harriet tubman thomas garrett ellen craft