Illona was born in 1942, the daughter of unknown parents. The place is not known.
Her husband was Walter Frank Jaap. They were married, but the date and place have not been found. Their six known children were Robert (Private) (1960-?), Natalie (Private) (1961-?), Walter (Private) (1964-?), Michael (Private) (1965-?), Kimberley (Private) (1971-?) and Douglas (Private) (1973-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | 1942 |