Website/Catalog  (1920)  Page(s) 25.  
 
Double Flowering Peonies
Samuel Henshaw. (Richardson.) Large, compact, flat, rose type. Delicate shell-pink. Late....$5.00

Website/Catalog  (1918)  Page(s) 17.  Includes photo(s).
 
Paeonia albiflora: Richardson Seedlings.
The following Peonies are seedlings raised by the late Mr. John Richardson of Dorchester, Mass., who was well known as a very skillful horticulturalist. The Peonies that he originated include some of the finest known varieties.
Samuel Henshaw. Outer petals clear rose pink tinged with white, inner petals pink and white intermingled, the white predominating. Very large full flower, perfectly double, erect, of wonderful vigor. To get best results should be shaded from the sun, disbudded, as lateral buds injure the shape of the flower, and freely manured. It is then a magnificent and most distinctive Peony. Late. Silver Medal, 1904. $6.00.

Book  (1907)  Page(s) 106.  
 
1148. *HENSHAW, SAMUEL; P. albiflora...(Richardson and Jackson)
(1) *1904, Trans. Mass. Hort. Soc., Part 1, p. 184.

*One star before the name indicates that the variety has been pictured in the reference that is also starred.

Book  (1907)  Page(s) 46.  
 
Samuel Henshaw. Richardson, 1871. Named by Jackson. Outer petals clear rose pink, tinged with white; inner petals pink and white, intermingled; very large and of wonderful vigor. Stem nearly as large as a lady's finger, supporting the grand flower in storms and wind.

Magazine  (1904)  Page(s) 184.  Includes photo(s).
 
"John Richardson: His House and Garden." By Robert Tracy Jackson, Cambridge, Mass.
Presented for publication, October, 1904.
Description of Mr. Richardson's Seedling Peonies.
The following is a list with descriptions of the Richardson seedling peonies, with synonyms where such exist and the awards they have received; these awards were all made by the Massachusetts Horticultural Society, so that for the sake of brevity the name of the Society is not further mentioned. The date of blooming this year is given, and also the height. The height was taken in August, and measures the distance from the ground to the calyx of the flower; with the flower, therefore, some inches would be added as a maximum height. The whole set of eighteen varieties was exhibited this year before the Society either on June 5, 11, or 21-22.
Samuel Henshaw. (Plate 12.) Named by me. Outer petals clear rose pink, tinged with white, inner petals pink and white intermingled, the white predominating, very large and full flower, a little low in the centre, in hot sun turns out nearly or quite white throughout. Very large and of wonderful vigor, the stem nearly as large as a lady's little finger, stands upright through heavy wind and rain unharmed, of very distinctive character. To get best results it should be shaded from hot sun, disbudded and freely manured. It is then a magnificent peony. In bloom 20 June 1904, height to flower 34 inches; the tallest blooms much exceeded this measurement, but had been cut for exhibition. Exhibited by me, 21 June 1904, when it was awarded a Silver Medal. Posthumous seedling of Mr. Richardson's, named for Mr. Samuel Henshaw, entomologist and Curator of the Museum of Comparative Zoölogy, at Harvard University.