I remember we had to learn this in 7th grade but my recall only went up to Lincoln. I took the same method I used in 7th grade and learned the rest in half a day. It helps to make a story with the first letters of their last name. For example Washington-Lincoln (this is the one my teacher taught me in 7th grade, thanks Mr. Wilson): [read vertically]
Walter Washington
And Adams
Jack Jefferson
Met Madison
Mary Monroe
And Adams
Jane Jackson
Visily (not a real word) Van Buren
Hurrying Harrison
To Tyler
Pick Polk
The Taylor
Fresh Fillmore
Peas Pierce
Before Buchannan
Lunch Lincoln
hope it helps!
