Some of these children may also have PLASC or EOTAS records but could not be linked to the WDSD due to discrepancies in recording of name, address or date of birth.
Efallai fod gan rai o’r plant hyn gofnodion CYBLD neu EOTAS hefyd ond ni ellid eu cysylltu â’r WDSD oherwydd anghysondebau wrth gofnodi enw, cyfeiriad neu ddyddiad geni.