Z. de Forest Ely & Co., 1893, Wholesale Price List, Philadelphia, PA
Z. de Forest Ely & Co., 1894, Lilium, Hyacinths, Narcissus, Tulips, Philadelphia, PA
Z. de Forest Ely & Co., 1896, Lilium, Hyacinths, Narcissus, Tulips, Philadelphia, PA
Z. de Forest Ely & Co., 1893, Wholesale Price List, Philadelphia, PA
Z. de Forest Ely & Co., 1894, Lilium, Hyacinths, Narcissus, Tulips, Philadelphia, PA
Z. de Forest Ely & Co., 1896, Lilium, Hyacinths, Narcissus, Tulips, Philadelphia, PA