i know exactly how you feel.
impossible not to revere those trees that fed you as a child, and which will continue to feed your children, and your children's children. My friends and family find it weird that i go out of my way to dig holes in their yards to plant mulberries and jujubes. I simply tell them that those trees will last hundreds of years, maybe even a thousand, so totally worth my time.. Referring to humans' average life expectancy, i only have a few decades to go -- that is if i don't get hit by a truck tomorrow, or struck by lightning next week..
thus in a hurry to broadcast as many trees to as many people before i go kaput.
so yes, those gnarly-old but still fruitful nigras you've posted here along with the provenance further intensify this 'urge' of mine