Book  (1936)  Page(s) 385.  
 
Killarney, Dark Pink (HT) Pierson 1910; sport of Killarney; deep pink

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. 

Book  (1913)  Page(s) 112.  
 
E. G. Hill.  Roses in the United States. 
The four Killarneys, 'White Killarney', 'Double White Killarney', 'Killarney Queen' and the original 'Killarney' hold a very large proportion of the space allotted to forcing Roses the country over, with 'Double White' and 'Killarney Queen' entering their final test the present season.  'Double Killarney' has been discarded because of its faded colour, and 'Pierson's Dark Killarney' is too slow in growth;  if the splendid growth of the former could be combined with the glorious colour of the latter, we should have little left to desire in a red Rose.  

Website/Catalog  (1912)  Page(s) 4.  Includes photo(s).
 
Dark Pink Killarney A clear dark pink color that is bright through the dark days of Fall and Winter when Killarney is pale and unattractive. A variety that is more productive than KilIarney, but one that needs careful handling to be brought to perfection: such is Dark Pink Killarney. The foliage is smaller than Killarney with a tendency to scald in hot weather. To be properly handled it should be grown cool to obtain size of bloom and number of petals. It will not thrive under conditions of heavy feeding and too high temperature. It is a variety that should be counted on for a money maker in Winter, but not in hot weather. 

[Same photo as Holmes' Commercial Rose Culture, 1911, p.72]

Website/Catalog  (1912)  Page(s) 2.  
 
p2.  One of the most interesting incidents in present day rose culture is the sporting habit of the Killarney family; usually when roses have sported, it has been in color only, or with a hardly perceptible change of foliage, but...  Dark Pink Killarney is short in growth and very slow...

p7.  Dark Pink Killarney.  Much deeper in color than Killarney, almost a pure red : dwarf in growth. 

Magazine  (20 Aug 1910)  Page(s) 188.  
 
ROSES REGISTERED. Cromwell, Conn., June 25, 1910. We wish to register the roses described as follows: Dark Pink Killarney, a sport of Killarney originating with the Montrose Greenhouses, Montrose, Mass., and acquired by A. N. Pierson. Inc., by purchase. It is a sport of Killarney identical with the parent in habit and size of bloom. The color however, is much darker than Killarney at all times of the year. This rose will be disseminated in 1911. [...] A. N. PIERSON, Inc.