Born in Texas, Marshall received his BFA from Texas Christian University and his MFA in sculpture from the University of the Arts in Philadelphia. Following his career in the National Football League (1980-86), he turned his attention towards creative vocations including Museum Curator, Graphic Designer and Exhibit Designer for zoos and aquaria and finally fine artist in 2006. Some of his design work includes exhibits for zoos and aquaria in Antwerp and Taiwan, as well as for US Aquaria and Science Museums. Marshall exhibits fine art nationally, with work featured in corporate and private collections. Marshall was the recipient of the 2013 Hunting Art Prize.