 Complete the following phrase:  After the death of Tony Hulman in 1977, his widow Mary F. Hulman Maris mother was named the chairperson of the board of directors of the Indianapolis Motor Speedway and Hulman  Co., the familys primary business. Mari Hulman George was named to the position of vice president and board member. When Mary F. Hulmans health began to decline, she retired and was named chairman emeritus, a position she held until her death in 1998. The chairmanship of the companies was passed to Mari Hulman George in 1988. Mari Hulman George held those positions until the summer of 2016. Shortly after the 