Book  (Apr 1993)  Page(s) 263.  
 
Ivory Tea (Old Garden Rose), flowers ivory-white, 1901, 'Golden Gate' sport; Dingee & Conard...

Book  (Jun 1992)  Page(s) 71.  
 
Ivory ('White Golden Gate') Tea. Durfee/American Rose Co., 1901. Sport of 'Golden Gate'... [Author cites information from different sources.]

Book  (1936)  Page(s) 365.  
 
Ivory (tea) American Rose Co. 1901; sport of Golden Gate; ivory-white.

Book  (1912)  Page(s) 224.  
 
Cream-coloured Tea Roses.
Ivory. -- Offspring of Golden Gate. Identical except in colour. Superb creamy-white roses.

Website/Catalog  (1909)  Page(s) 8.  
 
General List of Ever-Blooming Roses
Ivory
(Tea.)
This exquisite new Rose resembles the beautiful Golden Gate in form and loveliness, but is pure ivory-white.  It is an exceedingly free bloomer, sure to be covered with lovely buds and flowers the whole growing season; the buds are wonderfully beautiful and borne in great profusion, and the flowers are large, full and sweet.  It is a healthy, vigorous grower and very handsome and desirable in every way; strong plants

Website/Catalog  (1907)  Page(s) 30.  
 
Ivory (American Rose Co. 1902) pure white, sport of "Golden Gate"

Booklet  (1904)  Page(s) 8.  
 
New Tea Roses.
Ivory  (American Rose Co, 1902). A clear ivory-white sport of Golden Gate (T), which it resembles in every respect except colour

Magazine  (19 Dec 1903)  Page(s) 616.  
 
Die Rosen- und Baumschulen von Peter Lambert in Trier....
Ivory, ein weisser Sport von Golden Gate, dessen Blumen weiss sind wie karrarischer Marmor. Es soll diese Sorte bestimmt sein, einen Ersatz für Niphetos zu bieten, da sie bedeutend besser wächst und ihre Blumen sich aufrecht tragen. Sie ist gleichzeitig die erste amerikanische Rose, die auf der grössten Rosenausstellung in Kansas die goldene Medaille erhielt.

Translation:
Peter Lambert's rose and tree nurseries in Trier...
Ivory, a white sport of Golden Gate, whose flowers are white like Carrara marble. This variety is intended to be a replacement for Niphetos as it grows significantly better and its flowers are upright. It is also the first American rose to receive the gold medal at the largest rose exhibition in Kansas.

Magazine  (28 Mar 1903)  Page(s) 201-202.  
 
New Roses. Prepared by E. G. Hill for the Annual Meeting of the American Rose Society. Philadelphia, Pa.. March 84, 1903
,,,,Ivory, introduced last year, is a splendid producer of buds and flowers during the winter months; in fact, is considered of unusual merit and value as a white forcing Rose. This variety is thought highly of by nearly all the growers who have given it trial this year, and we hear of large increase to be planted of this variety; this would seem to indicate its popularity and standing. The variety is lacking in foliage, and this is a very pronounced defect, nevertheless the variety has so many good qualities that it more than counterbalances this weak point.

Website/Catalog  (1903)  Page(s) 4.  
 
Ivory, or White Golden Gate
Introduced in 1901. A counterpart in every particular of its parent, Golden Gate, except in color, which is a shining ivory white; strong, well-established plants from 2 1/2 pots. Ready early in spring. $7.00 per 100; grafted plants, $15.00 per 100.