Marian Pfister Anschutz, born Marian Pfister, was an American homemaker from a Kansas family with roots in the Midwest, best known as the mother of billionaire businessman Philip Anschutz. She married Fred C. Anschutz, an oil prospector and entrepreneur who founded the Anschutz Corporation, and together they raised their family in Russell, Kansas. During the mid-20th century, Marian focused on domestic life while supporting her husband's ventures in the oil industry, exemplifying the supportive role of spouses in early American business families, particularly in the resource extraction sectors of the Great Plains. Her son Philip, born in 1939, would go on to build a vast empire in entertainment, sports, and energy, but Marian herself remained out of the public eye, dedicated to family matters. She passed away in 1989, leaving a legacy tied to the foundational years of the Anschutz family fortune. Little is publicly documented about her personal interests or activities beyond her role as a mother and wife, reflecting the era's norms for women in similar socioeconomic backgrounds.