Mildred Warwick grew up in Regina, Saskatchewan, Canada.  This is where young "Millie" learned to fit right in with her athletic family.  She excelled in softball, basketball, volleyball, and track and field.  While attending Commercial High School, she won the Junior Athletic Award for track and field.  After high school she took some business courses at Alberta College and went to work for the Canadian Federal Government.  She returned to this career after her time in the AAGPBL. 

 At age 20, while playing fast-pitch softball for the Regina Army-Navy Bombers, she was spotted by an AAGPBL scout and offered a tryout with the new professional league in the American Midwest. Like many aspiring young women trying out for the league, she did not think she was good enough to make the AAGPBL, but she did.  She became one of the best hitters in the early seasons of the league, setting a 13 game hitting streak record that stood until being tied by Lib Mahon in 1945.  It may have remained a record, but the AAGPBL quit keeping official hitting streak records after 1948.

Mildred left the AA League after her second season in 1944 to wed her New York Ranger (National Hockey League) player husband, Ken McAuley in 1945.  However, she did continue to play fast-pitch softball at a high level in Canada and the team she co-founded in Edmonton, Alberta won the national title in 1951. 

She would work for the Canadian Department of Energy for a total of 27 years until she retired in 1988.  Her post playing career accolades included an induction into the Saskatchewan Sports Hall of Fame in 1986 with four brothers; induction into the Alberta Baseball Hall of Fame in 1991; and induction into the Canadian Baseball Hall of Fame and Museum in 1998.  Her last major contribution to baseball was when she and Betty Dunn were ambassadors for the first ever Women's Baseball World Cup in 2004 which was held in Edmonton.