
As quoted in Frederick Douglass and the Fourth of July https://books.google.com/books?id=-m2WBgAAQBAJ&pg=PT106&lpg=PT106&dq=%22scaffolding+to+the+magnificent+structure%22+douglass&source=bl&ots=KT4-pHUo5-&sig=ACfU3U21MIZj_niQo7pIGSxeO5vhEkXq4w&hl=en&sa=X&ved=2ahUKEwim6fvM3I3iAhVqiOAKHWIqDK8Q6AEwB3oECAcQAQ#v=onepage&q=%22scaffolding%20to%20the%20magnificent%20structure%22%20douglass&f=false
1860s, Should the Negro Enlist in the Union Army? (1863)