The case concerned the interpretation of a private trust deed executed in 1953 by the late Louis John Druiff. The trust provided benefits to his four children and, upon their deaths, to their ‘children’, ‘descendants’, ‘issue’ or ‘legal descendants’. At the time of execution, legislation (the Children’s Act 31 of 1937) required a clear intention to include adopted children as beneficiaries under testamentary instruments. One of Druiff’s daughters, Dulcie Helena Harper, later adopted two children: David Louis Ayscough Wilkinson and Amanda Bridget Truter. Fearing that her adopted children would be excluded from benefitting under the trust, Harper and, later, her adopted children sought a declarator that the impugned terms included adopted children, or alternatively that the trust deed be varied under section 13 of the Trust Property Control Act. The High Court and the majority of the Supreme Court of Appeal held that adopted children were excluded. The applicants appealed to the Constitutional Court.