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About Me

I’ve been riding my bicycle almost exclusively for transportation since 2007. Although, for the past few years, I do a lot of walking, too, especially when we need groceries. I also take leisurely bike rides with my children nearly every day. I lifted weights for 11 years, but stayed unreasonably skinny until I found out how to properly strength train. It’s really simple and was never meant to be a secret, so I’m glad to let you know how to do it if you ask me.

I provide lots of free tools and analyses on this site and in private for people who find them useful. I love doing traditional genealogy research. In a few minutes I’ve smashed through people’s long-standing brick walls. One person I helped told me I should work for the FBI. But I’d rather not.

The most important work I do is modeling shared DNA between any possible relatives. I’ve found that there are some misconceptions in the genetic genealogy community about modeling and simulation. Models can be very powerful tools and there are many different kinds. They are in no way limited to mere exploration or reality checks. I’ve also heard the phrase, perhaps or perhaps not in regard to any models on my site, “only a simulation.” Au contraire. In the case of genetic modeling, there’s a high probability that it will always be more accurate than real data, just as it is today. Short of an analytical solution (in the mathematical sense) being achieved someday, if that’s even possible, modeling is probably the best option we’ll ever have. Currently, it’s the only way to get ranges of shared DNA for relationships such as 3/4 siblings, double 1st cousins, and others.


B.S. Applied Mathematics

M.S. Geophysics/Geological Oceanography

Two additional years of PhD-level research in physical oceanography running ocean climate models (ROMS)

Following that, two additional years of PhD-level research in modeling and simulation 


Nicholson, B., and J. Georgen (2013),
Controls on crustal accretion along the back-arc East Scotia Ridge: Constraints from bathymetry and gravity data, Mar. Geophys. Res., 34(1), 45–58, doi:10.1007/s11001-013-9172-x

Darby, D. A., Myers, W., Herman, S., and Nicholson, B. (2015), Chemical fingerprinting, a precise and efficient method to determine the source of sediments. Jour. Sed. Res., v. 85, 247–253.