Thank you KGarrad and Gibel for your information,
I have a bit more information that may promote my Scudamore theory:
It seems that there were no European apples in Jamestown in 1607 but they were plentiful by 1629 .......
https://www.smithsonianmag.com/science-nature/apples-of-your-eye-71328777/When the first colonists arrived at Jamestown, Virginia, in 1607, there were no cultivated fruit trees in America—save for a few scattered Indian plantings—only wild crab apples, cherries, plums and persimmons. Taking a bite into a persimmon, Capt. John Smith commented, could "draw a man's mouth awry."
How much Smith influenced the subsequent introduction of new fruits to America is unknown. What is clear is that many colonists brought seeds, cuttings and small plants on the voyage over from Europe. Among the first to take root here was the May Duke cherry, the Calville Blanc d'Hiver apple, the Moor Park apricot and the Green Gageplum. Over the course of the next 300 years, the New World would experience a virtual revolution in the number and quality of apple and other fruit varieties.
https://www.bbg.org/gardening/article/the_apple_in_north_americaEarly attempts at fruit growing were apparently quite successful. In 1629, Smith noted that peaches, apples, apricots, and figs "prosper[ed] exceedingly" in the colony. In 1642, the first governor of Virginia, William Berkley, cultivated some 1,500 fruit trees at his Green Spring estate, and two years later, he decreed that every planter must, "for every 500 acres granted him ... enclose and fence a quarter-acre of ground near his dwelling house for orchards and gardens."
I found the next bits of information about apples very interesting...
https://www.quora.com/How-long-should-it-take-on-average-to-grow-fruit-after-planting-an-apple-seed-Granny-Smith-tree Some 10 to 15 years. But you will never see any Granny Smith apples growing on your seedling tree! The tree will be a “wildling”, meaning a non-grafted tree, producing either tiny, hard apples or larger ones that are not very appealing at all. Here in Switzerland, we have many apple trees grown for juice. Lots of these fruit get eaten by animals, as they fall off in fall.
Some of the seeds sprout in the forest, growing into small, many branched trees. They flower like an apple tree, but only animals will eat the fruit. Sometimes, you get an edible variety, and if you plant and care for thousands of seedlings, you are likely to discover a few varieties with interesting taste.
These you then use for grafting: You cut newly growing, small branches, cut the trunk off of the seedling and unite the seedling with the branch. When done right, the branch will keep growing, forming a tree with good, interesting-tasting apples.
http://homeguides.sfgate.com/long-apple-trees-grow-up-first-harvest-58315.htmlHow Long for Apple Trees to Grow Up to First Harvest?
Apple trees sold in nurseries consist of a scion, or twig, of an apple variety grafted onto a rootstock. The type of rootstock determines the size of the tree and how long it will take to bear apples
A seedling of any apple variety will grow into a tree from 12 to 20 feet high and take six to 10 years to bear apples. You can reduce the size of a tree and shorten its bearing time by planting specially developed rootstocks with a grafted scion of the apple variety you want. Although an apple will sometimes grow a few apples the first or second year after you plant it, you should not let those apples mature. The tree needs to use all of its energy to get established.
It seems that trying to grow edible apples from seeds would have been extremely frustrating for the pioneers in Jamestown. It would have been far better to plant apple scions, and probably necessary to have achieve such an abundance of desirable apples by 1642. These orchards would have been grown from second- and third- generation scions. If Thomas Maddox had planted his apples in 1623, as he had planned, they could easily have been among Berkley's harvest nineteen years later in 1642.
So Thomas Maddox would have been well-advised to import scions to Jamestown... And if so, maybe the Hereford Redstreak ( or a predecessor at Holme Lacy apple) was carefully selected for cider production! Maybe Viscount Scudamore was the expert advisor...
Comments will be greatly appreciated!!
Llanfi
