#1 DIANE HENDRICKS | $11b | Diane is co-founder and chair of ABC Supply Co. Inc. As of 2015, she was ranked No. 159 on Forbes’ list of richest people in America. She has served on the boards of several charities and civic organizations. Diane cofounded the business with her late husband, Ken in 1982. She has run it since his death in 2007. ABC Supply Co. is the largest wholesale distributor of roofing in the US. Source: Ballotpedia