John B. Alden, New York

It is not clear if this publisher printed the entire 20 book set or only a few isolated volumes. My guess would be that Alden published all of the titles. The date of publication is not known. These books are quite uncommon.

As of this point in time, the following title have been noted:
History of Julius Caesar
History of William the Conqueror
History of Hernando Cortez

Cloth. 7.5" x 5".