Book  (1936)  Page(s) 183.  
 
Cromwell, Lady (HT) Pierson 1912; sport of May [sic] Maryland; no improvement.

Magazine  (28 Mar 1913)  Page(s) 65.  
 
INTRODUCED IN 1910: — 
No. 420 — 9-18-1909, Climbing Killarney (Alex Montgomery). 
No. 434— 6-11-1910. Red Killarney, and 
No. 435— 7- 7-1910, Dark Pink Killarney, and 
No. 437— 7- 7-1910, Lady Cromwell by A. N. Pierson, Inc. 

Magazine  (20 Aug 1910)  Page(s) 188.  
 
ROSES REGISTERED. Cromwell, Conn., June 25, 1910. [...] We wish also to register Rose Lady Cromwell, a sport of My Maryland originating with A. N. Pierson, Inc., in 1908. This rose in every way resembles My Maryland except in color. It is a shell pink outside, shading deeper towards the center, which is a creamy yellow, and sometimes quite a deep yellow. During the hot weather, however, the yellow center disappears, and the rose looks very much the color of an Enchantress carnation. It is very fragrant. This rose will not be disseminated until the spring of 1912. A. N. PIERSON, Inc.