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.
Yn achos rhai o’r plant hynny na ellid eu canfod mewn data CYBLD neu EOTAS, mae’n bosibl nad ydynt ar goll mewn gwirionedd ond ni ellid cysylltu eu cofnodion yn y data addysg â’r WDSD (e.e.