Historian and journalist (1882–1944) best known for his 1921 book The Story of Mankind. Collection of nine letters (8 ALSs, and one 1 TLS) from van Loon, all on attractive nautical-themed letterhead, dated from the 1920s and ‘30s, all one page; as well as two original sketches by van Loon on individual government postcards, an unsigned sketch of his home in Westport, Connecticut, and a self-portrait of the artist at his drafting table, dated December 15, 1925, and bearing a short note from van Loon, signed “H. v. L.” Also included are 18 letters to van Loon. In fine condition, with some scattered light toning to a few of the letters. RR Auction COA.