According to the quote in SaBM #1, pg. 23, continued on pg. 24:
http://www.elfquest.com/comic_viewer.php?fd=/gallery/OnlineComics/SABM/SABM01/_Siege at Blue Mountain - 1_page=1#_23#
it looks like all Rainsong's and Woodlock's children were born of Recognition. I also believe that Wendy has said something to that effect, though I can't remember where. Rainsong and Woodlock had so many children in such a short space of time because of Madcoils attack. So many tribemembers were lost that they experienced a babyboom of sorts.
This quote in KotBW also suggests that all their children were products of Recognition:
http://www.elfquest.com/comic_viewer.php?fd=/gallery/OnlineComics/KOBW/KOBW04/_Kings of the Broken Wheel - 4_page=1#_17#