Dominick H Roche married Bridget Dawson in 1864 in Brooklyn.
Maria (Roche) Magill was their first daughter. See 1870 US Census for Dominick Roach household. Second daughter Marguerite (aka Margaretta, Maggy) died in 1872. Maria Roche married James Magill. He died in 1904. Maria's given name appears as Ria, Ree, and Ryah, all diminutives of Maria, on various census forms. NYS Census 1905 shows widower Dominick H Roche, head of household, living with his widowed daughter Ryah Magill, granddaughter Helen B Magill, grandson Dawson Magill, and his sons Edward F and Frank A. Roche, Ryah's brothers. (Census released online by FamilySearch.org) Son Francis's birth record shows him the son of Dominick Roche and Bridget Dawson. She had delivered 14 children, many that I believe did not survive.

Dominick Magill, aged 22 months, died 11 Jan 1891 and was buried at Holy Cross Cemetery 12 Jan 1891. St, 6th ward Broolyn. I believe he was Maria's son and Dominick's grandson.