In 1901 when with the Pritchards in Margate she is listed as Nellie Dougherty (?) and shown born Chelsea (?).
This might possibly be her trail, possibly had a sister Catherine, but is it our Nellie Doughty

Really don't know.
Both are a bit older on these records....
1881 in Chelsea are Catherine Doherty, 4, and Nellie Doherty, 1
Parents Charles, 31, and Margaret, 27. Also there is Charles, 9
Birth registrations?
DOHERTY, CATHERINE
Mother's Maiden Surname: HEALEY
GRO Reference: 1877 D Quarter in CHELSEA Volume 01A Page 318
DORTHEY, ELLEN
Mother's Maiden Surname: HEALEY
GRO Reference: 1880 J Quarter in CHELSEA Volume 01A Page 371
Then we have the girls in the workhouse schools system, Chelsea
Catherine in 1884, Ellen in 1889 (mother Margaret Healey, workhouse)
https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS1R-Q9MM-J(Better image in those London poor law records on ancestry (Kensington and Chelsea / Chelsea / Register of Children / Schools and Children, 1885-1896 / Image 305)
They were discharged to Totteridge
And that is St Edward's School, which is further on in the book (image 353 on ancestry)
https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS1R-Q9MM-FGirls discharged to Lawn House, Margate. Catherine in 1891, Ellen in 1892
Could this be the Convent of the Daughters of the Cross?

Ellen was there five and half years, before going to into service in 1898
https://www.ancestry.co.uk/imageviewer/collections/1557/images/31537_215001-00356?backlabel=ReturnKensington and Chelsea / Chelsea / Register of Children / Schools and Children, 1885-1898 / Image 357
Yet to find it on FamilySearch
