Research Check-In: How Complete Are My Trees?

I’m starting this year by checking in on my tree completeness. Why am I doing this? While it can be nice to keep tabs on genealogy research progress, and I like a good set of statistics as much as the next person, it’s more than just curiosity. For any research project, it’s useful to start...

Using Sim-cM to Evaluate DNA Evidence

Sim-cM is a project set up to simulate shared DNA data for relationships of genealogical interest and to make the results freely available. So, what should we do with these results?

Sim-cM: An Update

A couple of weeks ago, I introduced Sim-cM - a project aiming to provide data from simulated pedigrees for different relationships of genealogical interest. I have now added more data, with results posted for 66 different relationships (including all of those listed in the Shared cM Project Version 3.0). For each relationship, I have included:...

A New Project: Sim-cM

I've been working on a project to simulate pedigrees and calculate the amounts of DNA shared between pairs of computer-generated relatives in different relationships. Using the Ped-sim Pedigree Simulator,1 I've generated data for eight relationships so far, with 10,000 simulated pairs of relatives apiece.  The main page for Sim-cM has summaries of the results that...

Mining Census Data for Historical Context – Fairfield County, Connecticut in 1920

Analyzing full census data for Bridgeport City and Fairfield County, Connecticut, in 1920 to get some context for a Polish family of interest living there at the time.

Where did my ancestors live?

Visualizing my ancestral (U.S.) households from census data.

My Ancestors’ Longevity

It's Week 3 of the #52Ancestors writing challenge, and this time the prompt is "longevity." I took this suggestion as motivation to look at the pattern of longevity of my ancestors over time, and I came up with the following: Some caveats: Clearly, not all of my direct ancestors are shown here; I only included...