Again I should've read more before sending out my previous somewhat uninformed query. I was a math major and am now a retired land surveyor, so numbers don't scare me, unless the IRS is involved! :>)) It's interesting to see how various people and groups have come up with different ways to identify the many genealogical relationships. Hopefully I won't need to resort to any kind of numbering system, although I'm already beginning to appreciate the view option that ancestry provides, you know, everyone in my family versus only my direct "blood relatives".