An all-University tribute to the leadership of Patrick G. Ryan, chair of the Northwestern Board of Trustees, and retiring President Henry S. Bienen will be held from 4 p.m. to 6 p.m. Thursday, June 4 on Deering Meadow on Northwestern’s Evanston campus.

Students, faculty and staff from all of Northwestern’s campuses are invited to attend.

“This will provide everyone an opportunity to thank Pat and Henry for their 14 years of remarkable leadership,” said William Osborn, the chair-elect of the trustees. “Northwestern was a very good place when they took on their leadership roles and together, they have made it an extraordinary one. This will give the many people on our campuses who have worked with Pat and Henry a chance to thank them personally.”

Mr. Ryan is chairman and chief executive of Chicago 2016, Chicago’s effort to host the Olympics in 2016, a position he has held since the bid’s inception in 2006. A 1959 Northwestern graduate, he became chair of Northwestern’s Board of Trustees in 1996. He has been a member of the Board since 1978 and chaired the search committee that selected President Bienen. Mr. Ryan is the Founding Chairman of Aon Corporation, the largest insurance and reinsurance broker in the world, which today operates with more than 500 offices in 120 countries.

Mr. Ryan and his wife, Shirley Welsh Ryan, a 1961 Northwestern graduate, have been major donors to Northwestern, as well as many other institutions and causes in the Chicago area.

Mr. Bienen took office in 1995. During his tenure, Northwestern faculty and students received numerous academic awards, the endowment quintupled, applications for admission skyrocketed and the University’s reputation grew both nationally and internationally.

Upon completion of his term in August, Mr. Bienen will have held the office for more than 14 years, making him the third-longest-serving president in Northwestern’s 158-year history.

“I’ve definitely enjoyed the opportunity to work with and get to know Mr. Ryan and President Bienen,” said Neal Sales-Griffin, former president of the Associated Student Government. “They both are people who care a great deal about Northwestern and that comes across as soon as you talk with them.”