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This page serves as an index to our explorations of various (often arcane)
topics related to genetic genealogy.
Doubt & Uncertainty
Doubt, or uncertainty, is a factor to be accounted for in all genetic genealogy interpretations.
This document helps quantify it.
TiP & Beyond About the FTDNA TiP© TMRCA calculator:
How it compares to other algorithms and advanced uses
Gamma Distributions An exposé of Gamma probability distributions and
their applications in genetic genealogy. Link
Project size vs. Unmatched participants
How does project size relate to the chances of new participants matching or not matching existing
Relationships of S & G
Explores relationships of unmatched singletons to groups (clusters) within a surname project.
Y-DNA and Surname Association
Paper submitted to Journal of Genetic Genealogy, yet unpublished there.
Link to data for above paper.
US President Surnames
Analyzes the origins and surname frequencies of the US Presidents' names.
A method for deriving additional meaning from Y-DNA matches beyond the probability of a common
paternal ancestor within a particular time frame.