Right. Which is why I don't fully believe my late grandfather. However, it would be nice to know if the strain I have has a direct lineage of the hemp grown during the Colony days.
The paper mentions that the Colonies first started growing European hemp varieties but by the mid 1800s had largely switched to (more recently) Chinese origin hemp varieties. I hope your grandfather's seeds are original Colony day seeds and you get to find out some day for a low cost but based on this paper, chances are that it isn't :(.