Mirtha grew up in Chile, a preschool teacher and performer who came to Canada in 1975. Since then, she started teaching dances and songs from Chile to new Chilean community members. She was the co-chair of Common Weal Community Inc. and is a popular theatre educator who formed ‘Life' (Little Improvs for Education) for APSS in 1992.
Mirtha has been a part of many community boards including AIDS Programs South Saskatchewan (APSS), Carmichael Outreach, Women's Centre, and Sexual Assault Centre Regina.
She is very active in the 2SLGBTQIAP+ community and volunteers for the houseless population providing meals every Sunday at Pepsi Park.