"A dictionary definition of sheaves is a quantity of heads of grain bound together. Ammon’s mention here of sheaves refers to the converts brought into the church by faithful missionaries who had thrust in their sickle.
"Each of us owes his membership in the Church to another person. Someone had to teach us. We are the sheaves that they have reaped. Note the grateful words of President David O. McKay
’A short time ago, I stood in a little room in Wales, in which my mother was born 102 years before, the room so small that the six-foot bed covers the entire width, and its length is barely two feet longer than it is wide, and the old rafters just two feet above my head, so about eight feet high. But my thoughts on that occasion have been sacred to me. I share one or two with you.
’I thought, as Sister McKay and I stood in that small bedroom, how different life would be now if two humble elders had not knocked at that door a hundred years ago! And how different life would be if my mother’s father and mother had not accepted that message? I looked around the village and found descendants of others who heard it at that time, descendants of some who ridiculed my grandfather and grandmother, for having accepted the truth; and they made light of their religion, scoffed at them and ostracized them for having accepted Mormonism. I realized how unenlightened those neighbors were when they condemned my grandparents.
’…Father’s folk were way up in the north of Scotland. It was only through the gospel that Father and Mother met. So I expressed gratitude, as I sensed it probably never so keenly before, as we stood in that little room, six by eight.’ (Gospel Ideals, pp. 122-3)"
(Book of Mormon Student Manual, 1981, p. 264)