Barlow asks each subject to wear something blue (her grandmother's favourite colour) and reflective of their personalities, and photographs them as they share their stories – aiming to picture 36 to mark each year of her grandmother's life. The participants were intially people she knew, but now people reach out to her through Twitter and the website wanting to take part.

And the women involved find it cathartic. For some, it's the first time they've ever told the full story to anyone. Isabel Flores described the process as “healing”, while Tamieka Smith said, “Sharing it made me feel strong again. I didn’t feel worthless after that”.

The project has opened up discussion with her own family too, and Barlow tells Stylist.co.uk that they've been supportive of her endeavours.

“I turned to my family first before I embarked on this journey. I wanted to be sure we were all on the same page about my idea and we flushed out any potential concerns or questions,” she says. “They’ve been very encouraging and supportive every step of the way. I receive ongoing feedback about how this has been a healing experience for them.”

Barlow didn't confront her grandfather when she was told what he'd done, “mostly due to the fact that I was still wrapping my head around the murder. My dad was very open to me asking questions and allowing me to go through my own emotions in the moment. I had more questions for my dad than I did for my grandfather.

“For me, I wanted greater insight into how my dad dealt with the tragedy of losing his mom by the hand of his own father with whom he had a close relationship. There was still a certain amount of secrecy after he told me; it was though we were still obliged to not speak about it around him. This changed after his death.”

Powerful photography series presents uplifting images of domestic violence survivors