What are these two typeface families?
They're from the newly redesigned Virginia Quarterly Review. The work was done by Percolator Design in Minneapolis.
The sans looks like Bliss.
[link]
The sans seem the Bliss!
http://www.typography.net/type/bliss.htm
And the serif, Font Bureau Whitman!
http://www.fontbureau.com/pdf/Whitman.pdf
The serif face is Whitman.
Captured from web.archive.org on 16 May 2005. view this capture