Anna Beechworth was the wife of Anthony Beechworth. She lived at their private estate up until her suicide. Devitt found her dead body in the boarded up room. Devitt can access the room after he acquires a crowbar.
In the room where she is located, her diary pages are scattered around the room, with the last entry held on her person. The entries reveal her slow grief as Anthony descended into madness and drove everyone away, including her.
The Beechworths might have had a baby. In an upstairs storage room, Devitt found a collection of portraits. One portrait was of a woman holding a child. Devitt remarked, "She looks like the woman on the bed [meaning Anna]. She is holding a baby. Could that be Anthony's child?" During Devitt's hypnotism session in Chapter 2, he saw Anna holding a crying baby. Since there was no evidence that a child lived in the home, the child might have died during infancy.
In the original online version of Chapter 1, Devitt did not associate the portrait with Anna. He simply described it as, "A woman holding a baby, she looks happy."