The Correspondence series holds the family and business papers of George Croghan. The earliest item is a brief letter from Christopher Clark to Francis Meriwether, May 26, 1794, regarding land. The items from 1814 to 1840 are primarily official missives to Croghan, when he served in military and governmental capacities as a major, postmaster, and inspector general. These concern enlistments, operational expenses, and debts. Beginning in 1837, many of the letters are addressed to George's brother, Dr. John Croghan, including 27 letters written by George. Another personal item is a brief letter from Croghan to his mother, dated 1837.
The Documents and Financial records series consists primarily of Croghan family land purchases and transactions in Ohio, Indiana, Illinois, and Kentucky. An item from May 28, 1817, contains a small map of a plot of Kentucky land being sold. Other documents include receipts for baggage transportation; an account for the income and expenses of the New Orleans Post office, dated 1825; and a number of debtors’ notes and bank receipts that document his money problems from 1825 until his death.
The Printed Material series contains three items: a memorial pamphlet printed by Croghan Bank, Fremont, Ohio, honoring Colonel Croghan for his heroism at Fort Stevens, with a portrait of Croghan as a young man; an informational circular, addressed to Dr. John Croghan (1846), from Lyman C. Draper, advertising his book, Lives of the Pioneers, a biography of prominent pioneers of Ohio, Kentucky, Tennessee, and the western borders of Pennsylvania, Virginia, the Carolinas, and Georgia; and a brief from the Edmonson Circuit Court on George Croghan's petition for the removal of Nicholson and others as trustees of the Mammoth Cave estate, 1902.