Modesty Barebone's biological siblings

The nine biological siblings of Modesty Barebone lived with her and theirmother and father in a tenement in the Bronx in the 1910s and/or 1920s. However, Modesty was adopted by Mary Lou Barebone, a No-Maj anti-witchcraft activist, possibly because the family had more children than they could care for or were magical. Afterward, Modesty missed her brothers and sisters, and would talk about them to her adoptive brother Credence.