Website/Catalog  (4 Sep 2015)  
 
The Sacramento Historic Cemetery & Historic Rose Garden Open Garden Sale. April 20, 2013.
"Elias Field Tea” Tea or China, White; Found Rose; Matches the rose sold as ‘Ducher’ France, 1869; Jean-Claude Ducher). Found at the grave of Elias Field, in a Gold Rush Era cemetery, this lovely white rose is offered under a “Study Name.” It appears to be identical to the rose sold by the Antique Rose Emporium as ‘Ducher,’ ....

Website/Catalog  (27 Jul 2011)  
 
Rosa ‘Ducher’
China rose.  ‘Ducher’ has pure white, medium sized flowers of fine full form.  It was recommended as a free and continuous-flowering white bedding rose by Paul.  [Paul (1888, 1903), Amat]. ...

History at Camden Park
This rose is part of a consignement from Veitch’s Nursery, Chelsea, despatched on December the 31st, 1859 on board the ‘Hollinside’, but none survived the journey although a number subsequently appeared in the 1861 list.  Although most were probably never grown by Macarthur these roses are of great interest because they bridge the gap between the older style of rose which predominates in the catalogue years, particularly in the 1840s, and the very fashionable, largely new roses of the 1861 list.  Together the three groups beautifully illustrate the development of the garden rose in the first 60 years of the 19th century, a period when roses first became the most popular of garden plants.

[Note - the 'Hollinside' ship was launched in 1857.  Refer 
https://hec.lrfoundation.org.uk/archive-library/ships/hollinside-1857.  
http://www.tynebuiltships.co.uk/H-Ships/hollinside1857.html

Article (magazine)  (2010)  Page(s) 1781.  
 
Ducher, Earth-Kind-designated rose for the south-central United States, China, 1869, Jean-Claude Ducher, Ploidy 2x ....

Booklet  (2009)  Page(s) 28.  
 
Diploid....Ducher, heterozygous loci 57% [Provenance: Antique Rose Emporium]

Booklet  (2009)  
 
In the China Rose group, known or suspected Hybrid Chinas become more apparent withboth the nuclear and chloroplast data plotted together. Th nuclear SSR data by itself revealed those China cultivars that had SSR profiles more closely matching the Teas...
'Jean Bach Sisley', 'Ducher', and 'Miss Lowe's Variety'...are three China/Hybrid China Roses that grouped in the Tea Type group based on SSR profiles, and they also share a haplotype with the R. odorata var. gigantea accession from China...rather than the haplotype of the majority of the China Roses. Of these 'Jean Bach Sisley' was already listed as a Hybrid China in Modern Roses XI... and 'Ducher' is listed as a China, but can be found described in the trade as an older Tea Rose type. In these two cases the data from this study support their hybrid status.

Book  (2008)  Page(s) 140.  
 
Marie Lambert is known in some parts of the United States as 'Ducher', Ducher, France 1869 (Ch)

Website/Catalog  (2005)  Page(s) 14.  
 
"Elias Field Plot” (Probable Tea Rose, Found, Parentage, Introducer, & Date Unknown) Judy Dean, Lynne Storm, Bev Vierra and Rusty Rolleri found this rose in a Gold-Rush-Era cemetery. “Elias Field Plot” is similar to the old China, ‘Ducher,’ though it is a bit more full. Rounded, almost egg-shaped buds never completely expand, creating an unusual effect, reminiscent of an elegant Edwardian lady wearing a bustle. White petals are occasionally touched with pink

Book  (Dec 1998)  Page(s) 210.  
 
Ducher ('Bengale Ducher') China. Ducher (France) 1869. Description...

Book  (Apr 1993)  Page(s) 145.  
 
Ducher China, pure white, 1869, Ducher.

Book  (Jun 1992)  Page(s) 28.  
 
Ducher ('Bengale Ducher') China. Ducher, 1869. [Author cites information from different sources.]