The ledes have it.
Boston Herald (sorry, no link – don’t know why):
Despite claiming she never used her Native American heritage when applying for a job, Elizabeth Warren’s campaign admitted last night the Democrat listed her minority status in professional directories for years when she taught at the University of Texas and the University of Pennsylvania.
US Senate candidate Elizabeth Warren – who said Friday she didn’t realize Harvard Law School had been promoting her as a Native American faculty member in the 1990s – was listed as a minority professor in American law school directories for nine years before she landed at Harvard, documents show.
Please note: Warren “listed” vs. Warren “was listed.”
Welcome to the next six months of your media life.
P.S. The Herald is on this like Brown on Williamson. See here and here and here.
Campaign Outsider 
I can’t imagine there are too many Mass voters who would vote for or against Warren based on her listed ethnicity while she was a Harvard professor, whether she listed it herself or not. I think everyone in America would agree that it’s awesome to be part-Injun, and pretty much everyone tries to claim some connection there if it possibly exists. BTW, there’s a pro-Warren bar night at the Four Green Fields this Thursday from 6-9 pm.
She’s 1/64th short of a Native American.
People who I know who have been able to claim that heritage on forms (school applications, job applications, fellowships, etc.) say that you have to be at least 3/64th Native American. The Globe’s story says that she’s 1/32nd (at least what has been tracked down so far), so that leaves her 1/64th short of being able to claim it legally.
Nice catch on the “listed” vs. “was listed” distinction!