Mama Dorka Owino Nyong’o was born in the 1920s in Ratta, Kisumu County. Until her disappearance, Kisumu Governor Anyang’ Nyong’o’s mother was not only a loyal ACK member, Ratta Parish, but also a deaconess in the same church. She was a role model not only for her children, but also for the community and society where she lived.
Apart from the well-known Professor Nyong’o, Dorka’s other children are professors, doctors, lawyers and engineers. Governor Nyong’o’s siblings are Dr Nyagoy Nyong’o, Dr Juliana Otieno and Eng Joel Mudhune.

As a deaconess, as she was popularly known, Dorka supported the church in development projects such as building hostels for girls and helping educate poor children.
She was also a tireless philanthropist and fundraiser with a heart for donating her wealth. Her plight for the poor was evident as she was willing to support projects for the less fortunate.

A passionate farmer, Dorka worked tirelessly on her farm to support her husband Hesbon Shimei Nyong’o, a priest. Dorka has been described as a person with rich family values ​​and a champion of the education of young girls. This is evident in several hostels she has built in Ratta which currently cater to less fortunate girls.

Dorka and Mrs. Eseri Olang’, the wife of ACK’s first African Bishop, helped found the first Union of African Mothers in Kenya in 1956. One of the main aims of this movement is to support and offer comfort to those who face adversity. The union also focuses on maintaining a worldwide fellowship of Christians who are united in service, worship and prayer.
Dorka died on May 28, 2019 at the Aga Khan Hospital in Nairobi. She was buried at her home in Ratta village, Seme sub-county. His burial was attended by President Uhuru Kenyatta, Raila Odinga, Mama Ida Odinga, Musalia Mudavadi and other national and county leaders.