Ey up Dave!
< maybe they may have survived in that position >
It seems they have. A photo taken from the drought period is available in Billingley's "Aspects of Calderdale", looking just as much like it did when the 1902 picture was taken. Pretty sure I heard Andy Roberts tell me he'd seen it below waters in the last great drought aswell. We could do with finding out where t' plug-hole is for that reservoir!