Officer's Quarters 2, 4, 5, and 6 were all built in 1870 and all follow the general plan. Their roofs extend over the verandas to cover them. Officer's Quarters 2 was purchased by the Fort Concho Museum in 1952. Officer's Quarters 5 is a ruin; only its foundations remain. About to the south of Officer's Quarters 5 is the site of a carriage house thought to be associated with the house. Officer's Quarters 6 was damaged by fire in 1961, but was repaired and turned into a living history exhibit.