Dabinett:

Image and text copyright (c) Keepers Nursery. Used with permission.
An old Somerset cider apple producing bittersweet cider
Use: Cider
Season of Use: Very early summer
Colour: Green
Flavour: Bittersweet
Origin: Somerset UK
Pollination Group: C
Self-fertility: Self Fertile
Devonshire Quarrenden:
An unusual variety with a distinct strawberry flavour best when eaten from the tree. Season of use August.
First introduced in 1676, Devon, UK.
Partially self fertile but pollination by another apple will maximise yield.
Dewdneys Seedling
Origin: Lincolnshire UK 1850
A large Victorian mid season cooking apple.
Use: Culinary
Season of Use: mid-season
Colour: Green
Flavour: Acid
Pollination Group: D
Self-fertility: Self-sterile
Discovery:
Image and text copyright (c) Keepers Nursery. Used with permission.
Discovery apple is one of the best early dessert apples
Use: Dessert
Season of Use: early in the season
Colour: Red
Flavour: Sharp
Origin: Essex UK 1949
Pollination Group: C
Self-fertility: Self-sterile
Dumelow’s Seedling:
A popular Victorian cooking apple and a good frost resistant substitute for Bramley
Use: Culinary
Season of Use: late summer to mid autumn
Colour: Flushed
Flavour: Acid
Origin: Leicestershire UK 1800
Pollination Group: D
Self-fertility: Self-sterile
From Robert Hogg,
British Pomology:
Synonyms.—Dumelow's Crab, ace. Hort. Trans. Duke of Wellington, Bon. Pyr.
Mai. 37. Normanton Wonder, ucc. Hort. Soc. Cat. Winter Hawthornden,
ace. Biv. Cat. Wellington's, Diel Kernobat. v. B. 55. Wellington's Reinette, Ibid.
Fruit, large ; roundish and flattened. Skin, pale yellow, strewed with minute russety dots, and greenish eiubtducd .specks under the surface and with a tinge of pale red on the side next the sun, which is sometimes almost entirely covered with a bright red cheek. Eye, large and open, with broad, reflexed, acuminate segments, set in an irregular, uneven, and pretty deep basin. Stalk, half-an-inch long, deeply inserted in a narrow, and funnel-shaped cavity, which is lined with russet. Flesh, yellowish-white, firm, crisp, brisk, and very juicy, with a slight aromatic flavor.
One of the most valuable culinary apples ; it is in use from November to March (northern hemipshere).
The tree is one of the strongest, and most vigorous growers, very hardy, and an excellent bearer. The young shoots which are long and stout, are thickly covered with large greyish white dots, which readily
distinguish this variety from almost every other.
This excellent apple was raised by a person of the name of Dumeller, (pronounced Dumelow), a farmer at Shakerstone, a village in Leicestershire, six miles from Ashby-de-la-Zouch, and is extensively cultivated in that, and the adjoining counties under the names of Dumelow's Crab. It was first introduced to the neighbourhood of London, by Mr. Richard Williams, of the Turnham Green nursery, who received it from Gopsal Hall, the seat of Earl Howe, and presented specimens of the fruit to the Horticultural Society in 1820. It was with him that the name of Wellington Apple originated, and by which only it is now known in the London markets.
Dunn’s Seedling:
Has its origins in the mid-nineteenth century. This variety is a cooking apple, harvested in autumn.