Excursion # 21 - 30 covering 1940 - 1949
21st Ex/1940, 60 pgs Diamond Ledge Area - Chick’s Corner - Gold Mine - Henry Pascoe - Electrification.
22nd Ex/1941, 36 pgs Religious Life of Sandwich, Part I: Churches Overview - Churches and Parsonages - Baptists Churches
23rdEx/1942, 32 pgs Religious Life of Sandwich, Part II: Society of Friends - Methodists - East Sandwich Chapel - Brick Church.
24th Ex/1943, 32 pgs Religious Life of Sandwich, Part III: Baptists - Congregational.
25th Ex/1944, 32 pgs Education in Sandwich, Part I: Schools - Districts 1 and 2 East - Beede, Dudley, Leavitt, Dorr – Joseph Wentworth.
26th Ex/1945, 40 pgs Education in Sandwich, Part II: Schools - Districts - Quimby - Lydia Dearborn - List of Men in Service 1945 - Chestnut Manor.
27th Ex/1946, 56 pgs Education in Sandwich, Part III: Schools 1830-1900 - List of Teachers 1855-1881.
28th Ex/1947, 64 pgs SHS Thirtieth Anniversary, part 1 - List of excursions and picnics to date - Lower Corner Resurveyed - The Stone Wall - Brick Store - First Well - Sandwich Reporter Printing - Isaac Adams - List of Postmasters at Sandwich Post Office 1812-1935- Dr. Warren J. Moulton.
29th Ex/1948 60 pgs SHS Thirtieth Anniversary, part 2 - Seven Biographies: Daniel Beede, Richard Sinkler, Ezekiel French, the Crosby family, the Wentworth family, William M. Weed, Isaac Adams - George Marston Weed.
30th Ex/1949, 64 pgs Covering the Red Hill Section: Range Road - Squam Lake Road - Squam Lake Landing - Red Hill Road - Valley View Farm.