After a couple of years, we started getting shoots around the old stump area... some of the roots had survived. After a couple years longer, around 2003-04, we let these grow after an overhanging privet tree in our neighbor's yard (which blocked the sun) was removed. And braided them into a sort of makeshift trunk... I recognized it as some kind of apple.
Eight years later, it is a sort of suckery 15' shrub... with lots of blossoms this past spring. And now... small apples! Yellow, ranging from 1.5 - 2.5" diameter. They appear to be ripe... tonight we tasted some. Golden Delicious, I think, given the appearance and taste (and that it was popular in the 1960s when the original tree was planted).