America’s Fourth-Richest Woman Unveiled With Koch Stake

For the past six years, Elaine Tettemer Marshall, the fourth-richest woman in the U.S., has avoided the spotlight that ordinarily accompanies great wealth.

The 70-year-old Dallas resident controls almost 15 percent of Koch Industries Inc., the second-largest closely held company in the U.S. Her stake in the Wichita, Kansas-based industrial conglomerate, which generates annual sales of $110 billion, is worth more than $12.7 billion, according to the Bloomberg Billionaires Index, which has expanded to 100 names. The only American women richer are Wal-Mart Stores Inc. heiresses Alice and Christy Walton, and 71-year-old candy scion Jacqueline Mars.