Warren County was named for Joseph Warren, the revolutionary patriot who sent Paul Revere and William Dawes on their famous rides and who was killed at the Battle of Bunker Hill. The county was formed from Frederick and Shenandoah counties in 1836.

Fiduciary Records consist of the records produced by executors, executrices, administrators or administratrices. The executors and executrices handled the estate of a person who died testate and the administrators and administratrices handled the estate of a person who died intestate. They had an inventory or an inventory and appraisement made of the deceased person's estate. They gave accounts currents telling how they collected debts owed the decease and the payment of the decease person's debts. They gave a report called a "Settlement of the Estate" which said what was done with the deceased person's estate that was left after all that person's debts were paid.

Fiduciary Records may include the records of a guardian appointed to administer the estate of a child under the age considered to be the age of an adult. The guardian would give accounts of the monies spent to feed, cloth, educate, and maintain their ward. They would rent out the land and/or slaves owned by their ward to produce income for the ward's support and record the amount of rent received in their accounts. If their ward received a legacy or a deed of gift, that information would be recorded in the guardian's accounts. When the child became of age, a final account would be made and a receipt from the ward would be included.