Final answer:
Albert, originally named Frederick Augustus Washington Bailey, ultimately chose the last name 'Douglass' upon his arrival in New Bedford, which was suggested by Mr. Johnson.
Step-by-step explanation:
Albert, named at birth as Frederick Augustus Washington Bailey, decided to take the last name Douglass. During his escape from slavery and subsequent arrival at New Bedford, he sought to prevent confusion and maintain a degree of anonymity to safeguard his newly acquired freedom.
Due to the abundance of people with the surname 'Johnson' in New Bedford, he felt the need to change his last name. Mr. Johnson, from whom Albert sought aid in choosing a new surname, suggested 'Douglass' after being inspired by the character in Sir Walter Scott's poem,
The Lady of the Lake. Albert henceforth adopted this name, becoming known as Frederick Douglass, which he decided to continue using as it became the name by which he was most widely recognized.