Gemma Gildea Sinclair was the wife of David Sinclair, who died in the Dilgar War, and the mother of Jeffrey and Malcolm Sinclair. A Professor of North American Literature, Gemma was fond of twentieth and twenty-first-century television comedies. She was featured as part of the program "Frontiers of Laughter. A Twenty-four-Hour History of North American Comedy," where she provided commentary on some of those comedies. Jeffrey gave the only recording of that program to his brother, until his fiancée, Catherine Sakai, presented him with another one.