- The Essex Institute Historical Collections, name, place and subject index of volumes I to XXII, 1859-1885
- The Essex Institute Historical collections: name, place and subject index of volumes XLIV to LXVII, 1908-1931
- The Essex Institute Historical collections: name, place and subject index of volumes LXVIII to LXXXV, 1931-1949
- The Essex Institute Historical Collections, name, place and subject index of volumes XXIII to XLIII, 1886-1907