Account books, day books, rice books, ledgers, inventories of stock, shipping accounts, and personal accounts of Robert Mackay, William Mackay, and Benjamin E. Stiles, merchants in Savannah, Georgia, and of Eliza McQueen Mackay. Also included are day books of Charles Roberts & Co. regarding sales of general merchandise. The relationship of Charles Roberts & Co. to the Mackays and Stiles families is not known.

Volumes 1-20, dated 1790-1795, are chiefly for Robert Mackay's businesses in Savannah. Included are ledger and day books on sales of general merchandise, rice books, inventories of stock, and general accounts. Also included during this period are the day books on sales of general merchandise for Charles Roberts and Co.

Volumes 21-24, from 1807-1818, also belong chiefly to Robert Mackay. They include personal, miscellaneous, and shipping accounts, as well as an invoice book. Volume 22 is an invoice book for Robert Mackay's business in Savannah. Volumes 23 and 24 include Robert Mackay's shipping accounts for his West Indies trade.

Volumes 25-31, dated 1828-1865, belonged chiefly to William Mackay. Included are personal cash account books. Also included are ledgers and balance sheets between William Mackay and his agents, P. Minis and A. A. Solomons, for his businesses in Savannah. Volume 26 is an account book, dated 1828-1865, which belonged to Eliza McQueen Mackay, of accounts of money handled for soldiers' families. Volume 27 is a ledger, dated 1838-1852, which belonged to Benjamin E. Stiles and was used for his business in Savannah.

Chiefly records of slaves at Grange Plantation and Sedgebank Plantation. It is not known to whom these plantations belonged, but it is believed that they were owned by the Mackay family. Volume S-32 is a record for Grange Plantation which contains lists of clothes and other supplies given to slaves, and lists of births and deaths of slaves. Also included in this volume is a plantation journal for 1814 and 1815, lists of crops and livestock produced by the plantation, and several pages written on sugar planting.

Volume 33 is a record for Sedgebank Plantation which contains lists of births and deaths of slaves, and lists of clothing and supplies given to them. Volume S-34 is a record for Sedgebank Plantation. It contains notations on rice taken to the mill, and records of the planting, flowering, and drying of an unknown crop.

Lettercopy books of Robert Mackay, John Mackay, and William Mackay. Volume 35, dated 1797-1817, contains copies of letters written by Robert Mackay. A section in the beginning of the volume appears to be an account of money paid or owed to various individuals.

Volume 36 is a lettercopy book, dated 1835-1836, which belonged to Lieutenant J.(John) Mackay during the period he spent overseeing improvements to the Savannah River. The letters are directed to Lieutenant J.K.F. Mansfield of the U.S. Corps of Engineers who was apparently Mackay's supervisor. The letters concern activities such as receiving and discharging ballast, and operating a dredge boat.

Volume 37 is a lettercopy book, dated 1851-1855, of William Mackay containing letters to friends and family.

Volumes containing memoranda of voyages, purchases, travel, and daily activities. Volume 38 is a memoranda book, dated 1802-1804, containing several accounts of ship voyages. It also contains what appear to be notations of requests for slaves from various trading ships. Other notations for purchases of miscellaneous goods are included. Volume 39 also contains accounts of ship voyages and memoranda on purchases of goods.

Included in Volume 40 are entries, beginning August 1806, recording daily activities during a visit to London, Manchester, and Liverpool. The entries continue after the owner returned to the United States. Volume 41 is a daily calendar, dated 1810, which belonged to Robert Mackay.

Commonplace book which belonged to Kitty Stiles containing poems copied from newspapers and other sources in several different hands. Some of the poems appear to be original compositions.

Estate records of Basil Cowper. Volume 43 and the first part of volume 44 list accounts of the estate of Basil Cowper of Jamaica. His wife, Mary Cowper, was executrix with her son-in-law, John McQueen. There are accounts of bills, debts, shipments of sugar, lumber, etc.

The second part of volume 44 contains the accounts of Mary Anne Cowper beginning in 1847. Included are entries such as money received and paid out, sums from slaves who hired their own time, and personal and household transactions. Also included are entries noting visitors, and letters received and sent.

Volumes of family history and other volumes. Two volumes, volumes M-45 and M-46, on microfilm, compiled by Mrs. W.S. Lovell of Birmingham, Alabama, relate to her ancestry and family history. Mrs. Lovell was the daughter of Robert Mackay Stiles and Margaret Couper Stiles. Volume M-45 contains family history, genealogy, and biographical information on John McQueen, Robert Mackay I, Robert Mackay II and his wife Eliza McQueen, the Stiles family of Savannah, the John Smith family of South Carolina and Georgia, and the Malbone family of Rhode Island, from which Robert Mackay was descended. Also included are original and typed copies of letters from 1770 of Robert Mackay I, Robert Mackay II, his children, and the Malbones. These include copies of letters from Robert E. Lee to his West Point classmate, John Mackay, and to others. Other letters were written by John Mackay to his family from Army posts, and family letters written from Savannah and Cass County during and after the Civil War. Also included in this volume is a diary, dated December 1864 to 9 September 1865, of Robert Mackay Stiles, Captain, Company E, 2nd Regiment Engineers, Confederate States of America It contains brief entries dealing with the evacuation of Savannah, and Mackay's travels under orders until the end of the war. He was in Augusta, Charleston, Columbia, and Charlotte. After the war he was at Tebauville, Thomasville, Albany, Macon, Atlanta, and Savannah. His entries were so brief that at times his purpose in going to these places is not at all clear, and he wrote very little about his activities.

The second volume on microfilm, volume M-46, contains the family history and genealogy of the Couper, Wylly, and Maxwell families of Georgia. Included are letters written by members of the Couper family: James Hamilton Couper from school in New Haven, Connecticut, James Hamilton, John Couper of Cannon's Point on St. Simons, and John Hamilton Couper of Hopeton Plantation.

Volume 47 is a scrapbook which belonged to Phoebe Elliot. The book contains verses and other items cut from newspapers and magazines, the majority of which do not relate to family history. Most of the items are not dated, but some are from the period 1886-1890.

Also included in this series is a binder, volume 48, containing A History of the White House Tract, Richmond County, Georgia, 1756-1975 , by Martha F. Norwood. The "White House tract" was originally a 500 acre tract including modern Augusta, the old village of Harrisburg, and various historic structures, the majority of which are no longer standing. It includes a house which stands today at 1822 Broad Street, Augusta, Georgia, formerly known as the "Mackay House" and now known as the "Harris-Pearson-Walker-House".