**Grant M. Wilson** (June 6, 1931 – September 10, 2012) was an esteemed American thermodynamicist whose groundbreaking work in chemical engineering and physical chemistry has left a lasting impact on the industry. He is best known for developing the Wilson equation, a pioneering model that addresses nonideal behavior in liquid mixtures, particularly with polar compounds like alcohols and amines. This equation has become a fundamental tool in commercial chemical process simulators, aiding in the prediction of phase behavior and ensuring the safety and efficiency of process designs critical to both commercial and environmental applications in the chemical sector.

In addition to his scientific achievements, Wilson’s Human Design profile reveals that he was a Projector with an Emotional Inner Authority. This aspect of his design suggests that he had a unique ability to guide and influence others through his insights, but he needed to wait for invitations to share his wisdom. His 4/1 Profile indicates a strong foundation of knowledge and a desire to build connections, which likely contributed to his success in founding Wilco (now Wiltec) in 1977. This company focused on researching, measuring, and commercializing thermophysical property data for various chemical mixtures, further solidifying Wilson’s legacy in the field.

Born in Nuevo Casas Grandes, Mexico, Wilson married Reta Raphiel in the Logan Temple on September 18, 1950. Together, they served as missionaries for The Church of Jesus Christ of Latter-day Saints in Bangalore, India, from 2002 to 2004, demonstrating their commitment to service and community.

Wilson’s Incarnation Cross, the Juxtaposition Cross of Experience (35/5 | 22/47), highlights his role as a teacher and guide, drawing from his rich life experiences to share valuable lessons with others. He passed away in Orem, Utah, at the age of 81, leaving behind a legacy celebrated in the scientific community. In April 2014, the Journal of Chemical & Engineering Data published a posthumous issue in his honor, recognizing his extensive contributions to the field of thermodynamics and chemical engineering.

Grant M. Wilson’s life was characterized by a blend of scientific innovation and personal dedication, making him a significant figure in both his professional and personal endeavors.