I am trying to find either of the two people mentioned above.

Juanita's last known whereabouts were in The Avenues in Harare.
Lydia is her daughter, lydias father was Col. Oliver Henry Waring. He passed away in 2002 in Australia, with no contact details for either of these two people.

Lydia was in hospital in Harare(Salisbury) in March 1970.