Order of Corporate Reunion

The Order of Corporate Reunion (OCR), officially the Christian, Ecumenical, and Fraternal Order of Corporate Reunion, was an ecumenical association of clergy and laity of Anglican origin. The OCR was initially founded by Frederick George Lee, Thomas Wimberley Mossman, and John Thomas Seccombe between 1874-1877 in London. Established as an Anglo-Papalist society to continue the work of the Association for the Promotion of the Unity of Christendom, its founders sought to restore an apostolic succession recognized by the Catholic Church through reordinations as a means for reunion.

The founders of the Order of Corporate Reunion claimed to have been consecrated as bishops. However, they did not state in public the names of their consecrators. Over a century after their deaths it was revealed that bishops Luigi Nazari di Calabiana allegedly consecrated Mossman; Domenico Agostini allegedly consecrated Lee alongside Armenian Catholic abbot-bishop Ignazio Ghiurekian; and Seccombe was allegedly consecrated by Jules Ferrette of the Ancient British Church.

Following the deaths of its founders, the order fell dormant until it was revived between 1911-1912 by Arnold Harris Mathew. Prominent members and leaders of the revived order and its successive organizations were believed to have included Hugh George de Willmott Newman and Peter Paul Brennan. As of 2016, the revived Order of Corporate Reunion's leadership has been disputed among at least 3 separate organizations. In 2023, the primary branch associated with the Apostolic Episcopal Church received a registered trademark with the United States Patent and Trademark Office.