John Cabeçadas was a Manticoran citizen and the husband of Laura Cabeçadas.
In February 1922 PD, he and his wife passed through the space station HMSS Hephaestus on a tourist trip with their three children, Jennifer, Miguel, and Serafina. Tragically, at that time the station was attacked by the Mesan Operation Oyster Bay, and the whole family perished with it. (HH12)