The French Family Correspondence contains seven letters from three brothers who were soldiers in Company H, 11th New Hampshire Infantry during the American Civil War. The letters were all written to family members from various camps and hospitals in Maryland, Kentucky, and Virginia.

Writing from the barracks at Louisville, Kentucky on April 4, 1864, Henry French expresses his desire to rejoin his regiment and share their hardship and their duty "in putting down this rebellion." In a letter written September 12, 1864, he writes that he would like to be home to "get a few apples and a little cider" but predicts he will be home in another year and notes the many Confederate deserters that he has recently seen. After discussing news of family and mutual acquaintances, he lists the types of food that they have available to eat and asks for some things from home.

In two letters to his sister Mary, dated from Louisville on June 28 and December 14, 1863, John French writes of a recent leg wound and of some handkerchiefs that Mary had recently sent to brother Elias.

The collection also includes three letters from Elias French to his sister. In the first of these, written on 11th New Hampshire Infantry stationery from Pleasant Valley, Maryland on October 13, 1862, French discusses family and mutual acquaintances, then describes his breakfast ("Beans Coffee and McClelen [sic] Pies") and mentions other food available to the regiment: beef, griddle cakes, and pork. On December 29, 1862, French writes from a camp near Fredericksburg, Virginia, requesting some dried apples from home and reporting that he can see two balloons. "Prof Lowe is up looking at the Rebels in his," French writes, "and the other came from the South side of the River and I think it belongs to the Rebs it was up verry [sic] high and going towards Washington." In the third of these letters, written on United States Christian Commission stationery at Petersburg, Virginia on September 1, 1864, French writes of apples, melons, and the condition of his clothing.