The Wasilla City Council, with Sarah Palin, the future governor and vice-presidential nominee, at the center, in a 1998 photograph. Throughout her career, Ms. Palin has pursued vendettas, fired officials who crossed her and blurred the line between government and personal grievance.

So when there was a vacancy at the top of the State Division of Agriculture, she appointed a high school classmate, Franci Havemeister, to the $95,000-a-year directorship. A former real estate agent, Ms. Havemeister cited her childhood love of cows as a qualification for running the roughly $2 million agency.

Ms. Havemeister was one of at least five schoolmates Ms. Palin hired, often at salaries far exceeding their private sector wages