Eventually, thanks to the influence of WRI, and with the active help of the French Resistance, Brocca escaped from the concentration camp and left France, finally arriving in Mexico on 17 October 1942 aboard the Portuguese vessel SS Nyassa, a ship well known to many refugees of both the Spanish Civil War and World War II. Evidence in the written archives is sketchy about the period between Brocca's escape from arrest and his arrival in Mexico, but family testimony suggests that for some considerable time neither he nor his wife knew whether the other had survived. The Nazi occupation meant that making enquiries was extremely difficult, despite the best efforts of WRI to establish contact via agencies such as the Red Cross. After many further severe difficulties his wife and one of his sons (Helio) later joined him, having been separated from him for some years. They settled in San Luis Potosí and Mexico City where members of Helio's family still live. Funds towards their airline and boat fares were raised by supporters in the UK, and there was also considerable support from the USA coordinated by John Nevin Sayre of the Fellowship of Reconciliation in New York State. Brocca's other children settled in Wales (Olga), Sweden (Irma) and Spain (Arnulfo).
