Madeleine Price Ball is a Biophysics graduate student in George Church's lab at Harvard University. She works on high throughput DNA methylation profiling technology.
Her husband, Chris Ball, has his own blog. He works at One Laptop Per Child and likes to talk about computer things. He's British.
Madeleine likes to edit Wikipedia under her real name. She used to use "Madprime" but has since moved on to using her real name.
In case you're curious about distant past - Madeleine attended Caltech in '97-'98 & '99-'02, graduating with a Biology major. They still made her do some physics though. She was a Mole. Before this she attended La Jolla High School, as did her three awesome younger siblings.