"In 1834 Mr. Rivers, of Sawbrid[g]worth, England, published the first 'Descriptive Catalogue of Roses.' It enumerates by name four hundred and seventy-six varieties." --Potter's American Monthly, vol. 17, 1881, p. 44.

"In the year of Queen Victoria's accession, 1837, Mr. Thomas Rivers, of the Nurseries, Sawbridgeworth, gave to the public, in 'The Rose Amateur's Guide,' the results of his enthusiastic and intellligent 'Love among the Roses.' From his youth until he became, with his tall figure, his handsome features, and silvery hair, the impersonation of a 'grand old gardener,' he was devoted, heart, mind, and hand, to his work; and when standard rose-trees were first imported from the Continent, evoking such wild delights of admiration, that the Duke of Clarence gave a thousand guineas for the same number of trees, young Rivers was the first to adopt the process. He commenced his experiments in the year 1820, using as stocks the apple-bearing rose and vigorous shoots of the common sweet-briar, which, on the strong soil at Sawbridgeworth, made a growth of seven to nine feet in a reason; and in 1824 he planted 500 briar-stocks of the Dog Rose, increasing the number yearly [...]. In 1834 Mr. Rivers received from Como a single plant of a rose, raised from seed by Signor Manetti, and bearing his name. The flower was inferior; but the stock, easily multiplied from cuttings, has been an abundant mother of lovely daughters. In the same year the first 'Descriptive Catalogue of Roses,' cultivated at Sawbridgeworth, was published by Mr. Rivers, and a copy, most probably the only one in existence, was sent by him, not long before his death, to the writer of this article." --Quarterly Review, vol. 165, 1867, pp. 358-359.

Gardeners’ Chronicle (Apr. 8, 1843) p. 226
T. RIVERS, jun., begs to call the attention of his Friends to the following selection of new Hybrid, Perpetual, and other Autumnal Roses, all of which are first-rate varieties, and good healthy Plants.

— s./d.
1. Aubernon — 3/6
2. Augustine Monchelet — 5/0
3. Clementine Seringe — 10/6
4. Comte de Paris — 2/6
5. Doctor Marx (Laffay) — 10/6
6. Doctor Marjolin (Do.) — 10/6
7. Duc d'Aumale (Do.) — 7/6
8. Lady Alice Peel (Do.) — 10/6
9. Lane (Do). — 10/6
10. Madame Laffay (Do.) — 3/6
11. Prince de Gales (Do.) — 10/6
12. Prince Albert (Do.) — 3/6
13. Prudence Roeser — 5/0
14. Reine de Lyon — 21/0
15. Rivers (Laffay) — 7/6
[The above are quite hardy and very fragrant; Nos. 3, 12, and 13 remarkably so. Nos. 5, 6, 8, 9, 11, and 14 are quite new; these are grafted on Boursault stocks, six-inch stems, in pots, six-inch stems, in pots, the remainder are on their own roots in pots.]
Damask Perpetual.
16. Ebène, deep crimson-purple — 10/6
17. Momus, very dwarf — 5/0
[No. 16 is the darkest perpetual Rose known. These are also grafted on Boursault stocks, six-inch stems.]
Bourbons.
18. Proserpine — 7/6
19. Edouard Defosses — 5/0
20. Madame Aubis — 7/6
21. Cardinal Fesch — 5/0
Chinese.
22. Madame Bréon — 3/6
[No. 22 is a superb Rose, with brilliant rose-coloured flowers, on very erect and stiff peduncles.]
For many other fine varieties T. RIVERS begs to refer to his Catalogue for 1842-3. Sawbridgeworth, Herts, April 6, 1843.