This collection consists largely of personal, financial, property, legal, and miscellaneous records pertaining to Colonel Sidney Holderness Sr. and his son, Sidney Holderness Jr. These records include: correspondence, abstracts of deed, agreements, datebooks, account books, deeds, bank and financial statements, bills and receipts, stock market reports, income tax returns, insurance papers, fraternal lodge papers, business cards, memo books, church records, legal manuals, mortgages, plats, property descriptions, warranties of deed, a Soldier's Handbook (1941), World War II-era ration books, a B.C. and A. Freight Line notice, and an Atlanta Telephone Directory (1935). The property records include detailed records of the Holderness’ Carrollton properties, as well as their family land in Douglas County.

Also included are an assortment of keys, a collection of 1943 U.S steel pennies, a Carrol Trading Company Lucky Coin, and two sheets of the 1937 Atlanta Tuberculosis Association Christmas Seal with an accompanying letter addressed to Sidney Holderness Jr.

The four datebooks found in folder seven are a random sampling of the forty datebooks originally donated with the collection in February 2014. Spanning the years 1941 to 1968, the datebooks include the casual jottings and bookkeeping notes of Sidney Holderness Jr. Lacking historical substance or artifactual value, the remaining thirty-six datebooks were discarded by the Head of Special Collections in April 2014. Materials gifted in March of 2020 include a diary of private prayer, a book entitled Little Boy Black and Other Sketches, and a Lit-Mu Club program that were inscribed to Clare Holderness, two photo albums, and a print out of pictures of wall writings done by the Holderness family at their home on 302 Dixie Street.

Materials gifted in 2023 include correspondence to Sidney Holderness Jr. and two of Clare Holderness' diaries.