Magazine  (Mar 2020)  Page(s) 16. Vol 42, No. 1.  
 
Editor: “Somerville Big Pink” (not illustrated), which Brenda [Weir] brought from her childhood home in Victoria, was identified by John Nieuwesteeg as Mme Caroline Testout, HT 1890.

Newsletter  (Nov 2011)  Page(s) 14.  Includes photo(s).
 
For years I’ve looked for any remnants of ‘Mme Caroline Testout’, a French rose introduced in 1901. According to city records, 10,000 of them were planted along the main streets of Portland, Oregon--so many that the rose was known as ‘City of Portland’. Not until 2000 did I find one of the original plants; two rose friends spotted it while we were driving through a suburban area.
Bill Grant. “Roadside Roses” Pacific Horticulture, Jan-Mar 2002

Book  (Aug 2002)  Page(s) 57.  
 
Mme Caroline Testout
Rated 7.9

Book  (Dec 2000)  Page(s) 409.  
 
Mme. Caroline Testout Hybrid Tea. Joseph Pernet-Ducher 1890

Magazine  (Nov 1997)  Page(s) 73.  
 
Heritage Roses in Australia Inc. Third National Conference Proceedings.
Sean McCann. Heritage Roses - A Century From Now.
Many, many years ago the city of Portland, Oregon, filled its streets with Mme. Caroline Testout in one of the great plantings of modern times. The streets were packed with them. I've got some pictures way back in the 1920s of the city looking magnificent with these roses, but when I went there a few years ago I searched and searched and I was lucky to find this one plant. Nothing remains in the streets of Portland today. We have a son who lives there, by the way so that's why I know a bit about it, but most of the roses disappeared quickly.

Book  (Oct 1996)  Page(s) 12.  Includes photo(s).

Book  (Nov 1994)  Page(s) 3.  
 
[Graham Stuart Thomas's first rose was 'Mme. Caroline Testout']... recommended by an uncle who was something of a connoisseur...

Book  (Nov 1994)  Page(s) 247.  
 
... the flowers are apt to "ball"... Clear silvery pink with rolled petals...

Book  (Jul 1993)  Page(s) 76-77.  
 
The bush form of 'Madame Caroline Testout' was, in its days, almost as popular as 'Peace' in our time... The flowers are large and globular, of an even silvery-pink colour, not particularly full, with the petals rolled back at the edges...

Book  (Apr 1993)  Page(s) 334.  
 
Hybrid Tea, medium pink, 1890, 'Mme. De Tartas' x 'Lady Mary Fitzwilliam'; Pernet-Ducher. Bud pointed; flowers bright satiny rose, center darker, edged soft carmine-pink, double, large; fragrant; foliage rich green, soft; vigorous, bushy growth. Once planted by the thousands along the streets of Portland, Oregon.