Alice Munro's biography excluded husband's abuse of her daughter. How did that happen?

After the daughter of beloved Canadian author Alice Munro spoke to the Toronto Star about her abuse at the hands of her stepfather, it was also revealed that Munro's biographer intentionally kept that information out of his book. That has some biographers re-examining the purpose of their genre.

Alice Munro's biography excluded husband's abuse of her daughter. How did that happen?
An older woman sits on a char and looks at the camera.

After the daughter of beloved Canadian author Alice Munro spoke to the Toronto Star about her abuse at the hands of her stepfather, it was also revealed that Munro's biographer intentionally kept that information out of his book. That has some biographers re-examining the purpose of their genre.