Beth: What are you doing up at this time of morning?! :-) In response to this gedcom idea: ARE YOU GUYS NUTS??? It would almost have to be three dimensional to get the "Big Picture"... You know what they say, "Oh what tangled webs we weave, when first we practice to conceive..." :-) And we all know just how many offspring our ancestors conceived.... Maybe a better approach would be a coded system of numbers that would "overlap". Something akin to the game of Twister, I think... :-) Jo-Ann