Answer:
He wants to protect himself from being a found.
Step-by-step explanation:
Frederick Douglass has made himself the most persuasive victim of the evils of slavery and prejudice. Although it was illegal to teach slaves to read and write, Douglass nevertheless learned and secretly taught other slaves. After fleeing, he tirelessly participated in abolitionist gatherings across the North and the British Isles for more than two decades. Before fleeing, his surname was Bailey, but if he used his real surname, it would be easier to be discovered and captured again, so he changed his surname to Johnson over the years, decided to change his surname again, this time adopting the surname Douglass.