Book  (1936)  Page(s) 491.  
 
Morgan, Mrs. Pierpont (tea) May 1896 [Dingee]; sport of M. Cusin; cherry-red to carnation-pink, large, double, floriferous, growth 6/10.

Magazine  (22 Jul 1911)  Page(s) 350.  
 
The Parentage of Roses.
The following list of the world's Roses and their parentage has been compiled by Mr. Robert Daniel, 38 Russell Road. Fishponds, Bristol, and by his kind permission we are enabled to publish it...
Mrs. Pierpont Morgan... Tea, May, 1895, Sport Mme. Cusin

Book  (1910)  Page(s) 320.  
 
Mrs. Pierpont Morgan A sport from 'Madame Cusin', with bright cerise or rose pink flowers; growth vigorous.

Website/Catalog  (1909)  Page(s) 86.  
 
Mrs. Pierpont Morgan a sport from 'Mme. Cusin', very bright cerise or rose-pink flowers.

Book  (1906)  
 
The following were introduced by John N. May, of Summit, N.J.: ...Mrs. Pierpont Morgan, 1895, sport from Mme. Cusin, deeper in colour and very much larger, very sweet scented.

Magazine  (15 Jan 1903)  Page(s) 12.  
 
"The Queen of Flowers" By Edwin Lonsdale
Mme. Cusin had a brief popularity. Its form was very regular, almost like a Camellia, and its delicate pink color was in demand; but all growers could not produce it at a profit, hence its decline. A sport from the “Cusin” was Mrs. J. Pierpont Morgan, which is a stronger grower, and in consequence its buds were easier to produce. The flowers are also larger and a much darker shade of color, approaching solferino. Now Mrs. Morgan has taken upon itself to sport both in Canada and in the United States; the latter variety is known as Mrs. Oliver Ames, and the former Canadian Queen, and both are of the most delicate shades of pink in color, even lighter, it is believed, than the original Mme. Cusin. The sporting tendencies of Mrs. Morgan have so far the appearance of reversions to the older variety, and they may prove to be so nearly alike as to be practically identical. It has been stated that the one which originated in Canada is more robust in growth than the other. This point, however, can only be definitely determined after a careful test when being grown side by side under as nearly the same treatment as possible.

Website/Catalog  (1903)  Page(s) 62.  
 
Mrs. Pierpont Morgan A rosy pink sport from 'Mme. Cusin'; of the same shape and form.

Website/Catalog  (1903)  Page(s) 5.  
 
Tea Roses. Standard Varieties Best Suited for Winter Forcing
Mrs. Pierpont Morgan. Sport from Mme. Cusin, and a very great improvement over that variety, being larger, deeper in color and more floriferous; one of the very best.

Magazine  (1903)  Page(s) 476.  
 
"Rose-forcing in America." By Miss Anne Dorrance, F.R.H.S.
'Madame Cusin' has been and still is one of the standard forcing Roses. The thorns are somewhat poisonous, and have been its greatest drawback. Generous with its blooms, it has been equally generous with its offspring, and has given us one valuable forcing variety and two still waiting to be proved. The first sport is Mrs. J. Pierpont Morgan, and was introduced by J. N. May in 1895. It is much darker than its parent, and has a rather purplish tinge; it is equally prolific. Two others, one a child, the other a grandchild, are yet to be mentioned. The child, ‘Sara Nesbitt', originated on the place of Benjamin Dorrance in 1899; it is smaller than its parent; its white petals are tipped with pink, so that in appearance it is like a beautiful shell or the dainty attractiveness of the apple blossom. It is a remarkable keeper, frequently lasting a week in the living-rooms of a dwelling, and growing more beautiful as the petals open out and allow full development of the centre. The grandchild, ‘Mrs. Oliver Ames', a sport from ‘Mrs. Morgan', originated in 1901 near Boston with a Mr. Montgomery. It is not necessary for me to speak of this Rose, for recent report states that it has been on the R.H.S. tables for your inspection, sent over by J. N. May, who is introducing it.

Book  (1902)  Page(s) 80.  
 
Thé. 1879. Mistress Pierpont-Morgan (Dingée 1896), cerise nuancé