Target Corporation, for which the new wing is named, was the biggest donor, with a lead gift of more than $10 million.

In 2002, The David Geffen Foundation made a $5-million lead gift towards an eventually $17-million capital campaign to renovate the theater.

Philip H. Knight, the founder of Nike, has already promised $100 million as the lead gift for a new campus for the business school.

Over 600 people contributed $9 million dollars including a million dollar lead gift by Merle Chambers towards the construction of the center.

Chicago resident Helen S. Asher and her late husband Norman provided the $3.5 million lead gift for the building.

"The longer it delays, it means they don't have the lead gifts."

The lead gift of the building came from W.P. Wood Trusts.

Mr. Levy said that fund-raising had yet to begin and that he would be looking for large lead gifts.

Money like Mr. Norton's, secured before fund-raising campaigns are even announced, is called a lead gift.

Laura Barton, Peter Barton's widow, donated the lead gift for the $6.32 million stadium complex.