not sure how far back you have traced this line -
wm s/o John Corgeage + Christian Boddaugh is s/o Patt Corjeage + Mabel shimin (there is a m/c)
+ as John gives half estate the line should be traceable back via land records ; wills take you back to Thomas + Ellin Callister as parents Patt and there is a m/c for Thomas annexed to will in 1669