The Toronto-born musician addressed the rumours Wednesday in a message on his website, the Neil Young Archives.
Young refers to Hannah as “my wife Daryl” in an introduction to a live clip of him playing “Ohio.”
It’s the first time Young has addressed months of speculation that he and Hannah tied the knot over the summer.
Rumours began circulating in August when Hannah’s Instagram page filled with comments congratulating her on the ceremony.
Young was previously married to singer-songwriter Pegi Young but the two divorced in 2014.
Once he began dating Hannah the two spent ample time working on projects together.
Young played the Man in the Black Hat in the film “Paradox,” which was directed by Hannah and released earlier this year on Netflix.
She also worked on his short films and oversaw stage design for Young’s intimate concert last December in Omemee, Ont.
Young’s website post also reflected on how “Ohio,” which he wrote as part of Crosby, Stills, Nash and Young, was inspired by the Kent State shootings in which Ohio National Guardsmen shot and killed four students in 1970.
“It was a pivotal moment for me,” he wrote.
The message urged his U.S. fans to vote in the midterm elections, particularly in support of gun reform. He praised students who are “brave, demanding change in violent times.”
“Support our children. They want protection. Not more guns,” he said.
“Give us common sense gun laws that protect our people, in schools, in places of worship, in the workplace and on the streets.”