There are several new finding aids online, with all created by the efforts of several Library Science and History graduate students. Thanks to all of them.
Leon L. Dubois World War I Collection, 1909, 1916-1918
Luigi Ligutti Vatican Council II Collection, 1959-1971
Shane MacCarthy Humanae Vitae Controversy Collection, 1967-1971, 1986-1987
Jules Weinberg Papers, 1946-1960