The Danang/Quang Nam Fund has collected nearly 4,000 letters written by Agent Orange victims in Viet Nam. The majority of the letters come from Thai Binh, the province that has the most Agent Orange victims. Others are from Da Nang City, Ha Tay Province, Ha Noi City, Hai Phong City, Ninh Binh Province, Quang Nam Province, etc.

The letters were sent by victims' families to The Fund, and many others were collected by The Viet Nam Association for Agent Orange/Dioxin Victims, the Viet Nam Red Cross, and concerned citizens of Viet Nam.

Agent Orange, nicknamed for the color of the barrel in which it was shipped, contained extremely toxic set of chemical byproducts known as dioxins. Exposure to dioxins has been associated with severe birth defects and certain rare cancers in humans. The United States sprayed more than 19 million gallons of herbicides containing some 500 kg of dioxins on South Viet Nam between 1961 and 1970. Up to four million Vietnamese were exposed to dioxins.