Former Walgreen Co. Chairman Charles R. Walgreen Jr. Dies at 100

In 1995, at age 89, he traveled to Antarctica, where a 1,000-mile shoreline identified on maps as the Walgreen Coast was named by Adm. Richard E. Byrd, a family friend, in honor of Mr. Walgreen Sr. The trip required Mr. Walgreen Jr. to grow a beard and train for a year, and it was one of the great disappointments of his life that, because of a mix-up over a doctor's orders, he was not allowed on the final flight from base camp to the Pole. However, he is believed to be the oldest adventurer ever to visit Antarctica.

He also kept an office at the company's Deerfield, Ill., headquarters, where he could be seen working two or three days a week into his 90s. Then, at age 95, he ordered construction of a new 127-foot yacht, the Sis W., and two years later he and his wife and a crew including a staff of nurses cruised to the East Coast, the Panama Canal and the Galapagos Islands.