c.1922
The lace and sewing institutes
The parish's own history records that an inspector came to the sisters' needlework school in 1921, that from 1922 the sisters were teaching needlework, embroidery, lace, knitting and dress-making, and that in 1966 the tailoring school passed wholly into their charge. Those dates are the parish's account of itself. The school is not in doubt: the diocese still names the R.C. Lace Industrial School among the works of this parish, and the Osanam Sewing Institute stands beside it in the parish's own roll.
What this source establishes
The real source for all three dates — the inspector of 1921, the needlework, embroidery, lace, knitting and dress-making from 1922, and the tailoring school passing wholly to the sisters in 1966. The parish's 2026 compilation contains none of them; the chip used to point at a book that does not say this.