The collection is organized into five (5) series as follows:
SERIES I. PHOTOGRAPHS, 1846-1960s
SUBSERIES I.A. TROTTS FAMILY PHOTOGRAPHS, 1846-1960s
SUBSERIES I.B. ADAMS FAMILY PHOTOGRAPHS, 1905-1914
SUBSERIES I.C. JENNE FAMILY PHOTOGRAPHS, MID TO LATE 1800s
SERIES II. CORRESPONDENCE, 1908-1980 (BULK 1908-1920)
SUBSERIES II.A. LETTER FROM J.W. ADAMS TO PHELP R. ADAMS, 1930
SUBSERIES II.B. LETTERS TO RUTH (ADAMS) TROTTS, 1973, 1980
SUBSERIES II.C. CORRESPONDENCE TO MAMIE AND/OR WILLIAMS TROTTS, 1908-1930
SERIES III. REAL ESTATE RECORDS (1886-1932)
SERVIES IV. FAMILY RECORDS (1888-1977)
SUBSERIES IV.A. CERTIFICATES AND FAMILY DOCUMENTS
SUBSERIES IV.B. GENEALOGIES
SUBSERIES IV.C. NEWS CLIPPINGS
SUBSERIES IV.D. FAMILY BIBLES
SUBSERIES IV.E. HISTORICAL ENCYCLOPEDIA OF ILLINOIS AND KNOX COUNTY
SERIES V. EPHEMERA AND MEMORABILIA
