Dennis Genovese is the owner of HBS, Inc., a company specializing in security & fire safety systems. He was saved in 1990 after losing his businesses, house & everything he had. Through the grace of God he became a new creation and his life totally changed. His passion is to teach others the truth of the Bible and salvation in Jesus Christ alone.

Steve Grimes has a B.S. degree from Washington University in St. Louis in Systems and Data Processing. He was also an adjunct faculty member for the Washington University School of Engineering and Applied Science for 25 years, teaching Computer Systems Architecture in the undergraduate Bachelor of Science program. He currently works as a Business Intelligence developer, capping an Information Technology career that spans multiple computer environments and languages.

Scott Jarus has been a MAC Speaker since 2009, started leading the MAC Zoo Tours in 2012, and joined the MAC leadership board in 2023. He has a degree in Mechanical Engineering from the University of Missouri-Rolla (now MS&T) and is currently employed as a senior application and estimating engineer for a company that designs material handling systems. Scott mocked the account of Noah’s flood when his wife said it was true, but then God powerfully used Creation apologetics to open his eyes and his heart to the veracity of His Word.

Zachary Klein is a software architect, independent researcher, and father of five (and counting). He has long had a deep interest in Earth sciences and geology in particular, and has authored and led geological field trips in the St Louis region as well as at Mt St Helens, in Washington state. He serves as a speaker and as a member of the board of MAC, and enjoys introducing people to the grandeur of God’s creation and the reliability of Scripture.

Marv graduated St. Louis University in 1973 with a Bachelors degree in Marketing. He currently serves as President of the the Missouri Association for Creation.

Paul Weiland, being raised in a Christian home, was taught that God created the world in 6 days. As he heard about Darwin’s idea of evolution, he thought maybe God used evolution to create. He entered college with that mind-set. It didn’t take long though in the science courses he was taking to discover that Darwinian Evolution, although cloaked with scientific terminology, was not really science.

Gary is an engineer with 30 years experience and has received multiple patents. After being confronted in 2004 with evidence that human evolution stories were dubious, he began researching all the lines of “evidence for evolution”. His resulting conclusion is that science thoroughly supports the Biblical model and it soundly rejects the evolutionary model. He now works to share this information with others, to help them defend their faith, and to know that the Bible is true from beginning to end.