The .44 Henry was rimfire and a straight case, so it is considerably different from the later .44-40. There was no other caliber in the Henry.
FWIW, the Volcanic was redesigned by Oliver Winchester's shop foreman, Benjamin Tyler Henry and the new rifle became quite popular in part because it happened to be available at the start of the Civil War. Later, Henry was honored by having his initial, "H", stamped on every round of Winchester rimfire ammo.
Jim