Minnaar was a member of the ruling SWAPO and worked for the ǁKaras Region before joining the Landless People's Movement.

[1] In 2019, incumbent SWAPO regional councillor for Keetmanshoop Urban, Hilma Nicanor, resigned to contest a parliamentary seat in that year's general election.

[2] She campaigned on building a drug and alcohol rehabilitation centre in the region, if elected.

[1] Minnaar died on 10 August 2020 at the Lady Pohamba Private Hospital in the capital Windhoek.

Various politicians paid tribute to Minnaar, including LPM national leader Bernadus Swartbooi, who called her a "modern-day female revolutionary".