This section is from "The Horticulturist, And Journal Of Rural Art And Rural Taste", by P. Barry, A. J. Downing, J. Jay Smith, Peter B. Mead, F. W. Woodward, Henry T. Williams. Also available from Amazon: Horticulturist and Journal of Rural Art and Rural Taste.
This is a very large and beautiful Plum; a free, vigorous grower, and a most prolific bearer. Highly valuable. We received it from Wm. Kenrick, in 1839, under the name of Large Black Imperial; but it has been described in Hovey's Magazine as Bradshaw, and we have adopted that name in our catalogues. It is of foreign origin.
Stalk - half to three-fourths of an inch long. Flesh - yellowish-green, a little coarse, but juicy and sweet; adheres to the stone. Tree - remarkably vigorous, erect, and regular in growth, equalling the Smith's Orleans. Shoots - smooth, reddish. Buds - short and pointed. Foliage - large, glossy, serrated, and wavy at the edges. Ripe middle of August immediately succeeding the Peach Plum. We described this variety three or four years ago, in the Genesee Farmer.