This series contains correspondence to and from members of Hilaire Belloc's extended family. These correspondents include: Belloc's mother, Bessie Belloc; Belloc's grandmother, Louise Belloc; Belloc's sister, Marie Belloc Lowndes; and Belloc's son-in- law, Reginald Jebb. It also includes three letters from Reginald Jebb to Patrick Cahill. This series is organized alphabetically by correspondent and then chronologically within each folder.