Found occurrences of Jacob Perkins in 3 documents in the collection. Click on a column heading to sort by it, or to toggle ascending or descending sorting for the current column:

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Document Max. Freq. ⇩ Min. Freq. ⇩
Knight's Mechanical Encyclopedia (ed. Knight) 66 0 Browse all entities in this document
Harper's Encyclopedia of United States History (ed. Benson Lossing) 2 0 Browse all entities in this document
The writings of John Greenleaf Whittier, Volume 6. (ed. John Greenleaf Whittier) 2 0 Browse all entities in this document