The Honorable Order of American Co-Masonry is what remained when the American federation of Le Droit Humain split off the Supreme Council in Paris. Some lodges (6) decided to keep working under Le Droit Humain, the majority (8) formed the new order The Honorable Order of American Co-Masonry and the members of 4 other lodges spread over lodges of the two new orders.
From the viewpoint of the Honorable Order, they are the continuation of the mixed gender order that started in the USA in 1903. The headquarters of what used to be the American Federation are now the headquarters of the Honorable Order. The current American Le Droit Humain is the split-off in this scenario.
Be that as it may, since 1994 there were two branches from the same tree.
Both Le Droit Humain and the Honorable Order grew since. Le Droit Humain has some 16 lodges, the Honorable Order 29. What is perhaps a little ironic, the Honorable Order is nowdays an international order again with lodges in Argentinia and Chile (one each) and two in Brazil.
It is good to (virtually) run into people, since the website of the Honorable Order does not seem to say anything about the foreign lodges, but now I was able to make the respective country-pages more complete.