The cause was breast cancer, according to an online obituary.
From March 2001 to July 2011, Knott was an AGC congressional relations director. She spoke out on AGC member concerns, such as the need for comprehensive immigration reform and terrorism insurance.
AGC Chief Executive Stephen Sandherr told ENR that Knott still kept up relationships with the group, even after becoming senior director for federal relations at the National Retail Federation.
Earlier in her career, she served as a legislative aide to former U.S. Rep. Mel Hancock (R-Mo.).