Dr. Rochester became deputy historian of the Office of the Secretary of Defense in 1987 and chief historian in 2008.

But Jay Winter, an American don at Cambridge who serves as the series' chief historian, brings perspective to the proceedings.

His last duty in the Army was chief historian for the National Guard Bureau in Washington D.C., when he retired in 2002.

Around the same time Zhong Gu, chief historian of Jie, fled from the Xia to the Shang.

Some of their practices "attained new heights of quackery," said Dr. Green, who is chief historian at the Strong Museum in Rochester.

Calitrax, chief historian of Lys, met them at the little jetty.

He was great to work with, a fine scholar, and I regret he wasn't able to enjoy his position of chief historian longer before his untimely death from cancer in 2009.

About this time Zhong Gu, chief historian of Jie, would flee from the Xia to the Shang.

Ernest Law, chief historian of Hampton Court, points out that a "Mrs Grundy" did really exist.

He is a chief historian at the Foreign and Commonwealth Office and a visiting professor at Newcastle University.