Donald was born at either the end of the twentieth century or at the beginning of the twenty-first. He grew up in the early 21st Century during a great period of technological development. However, in his mid thirties he began to see the world suffer from the effects of the Blight and various resource scarcity based conflicts. He married and had a daughter named Erin around this time. Though, he could not recognize his world anymore as it had been consumed by the Resource Wars. His daughter eventually married Cooper and his grand children were born shortly thereafter. But once the Resource Wars, the old technocratic civilization that had defined Donald's generation ended. With city life's prominence and prospects diminished, he moved to rural Colorado to join his daughter and her family on his son-in-law's farm.
After the failure of the mission on Miller's planet, which cost Cooper and Brand 23 years, Cooper learns from one of the archived video messages that Tom sent him that Donald died and was buried with Erin at the back of the farm.
- ↑ Interstellar
Tom: Sorry it's been a while. Just... what with Jesse and all. Uh... grandpa died last week. We buried him out in the back plot next to mom and... Jesse. Just where we would've buried you if you'd ever... come back. Murph was there at the funeral. We don't see her that much, but she came for that.