Not a lot is known about Ingrid's life before the apocalypse. It can be assumed that she lived in or near the Texas area.
At some point after the apocalypse, Ingrid joined with The Vultures.
Ingrid, alongside Ennis and the rest of the Vultures, load up trucks with hundreds of zombies. After checking in with Ennis, Ingrid drives an ice cream truck ahead of the convoy to the stadium and leaves a trail of flammable oil in front of the stadium’s entrance before igniting it and fleeing towards the Vultures.
In the present, she participates in the gun fight with Alicia, Strand, and Luciana before eventually being shot and killed.