The majority of studies looking at family functioning and child adjustment of families with a child born following egg donation, have been conducted with families with an anonymous egg donor. The aim of the present study was to understand family functioning and child adjustment in families where the families had used an identifiable or known egg donor. Families have been seen when the child was aged 1 and 5 years. Data were collected using interviews, questionnaires and observational assessments. Findings from this study can be found on our publications page.