I am posting on the off-chance that someone tracing Harpur lines recognises these names in their tree. They are my mother's half-siblings.

Both were born in the 1940s. Their mother was Elizabeth (Millen/Fleeton/or Harpur).

Perre Constance (Connie)(surname unknown) had two or three children, one of whom was born in Belfast around 1967, possibly called Simon. Last contact was with Constance in late 1960s in Liverpool.

Trying to make contact but need more details for a search. Any information would be much appreciated.