Hello I am reviewing UK, England, Herefordshire—Bishop's Transcripts, 1583–1850 [Part D][MSTZ-Q8B]. The second to the last entry is for an illegitimate child. The instructions regarding the child's surname don't seem to cover this situation. It says "If a surname was not recorded for a child and only 1 surname was recorded for both parents, type the parents' surname in this field. If 2 different surnames were recorded for the parents, type the father's surname in this field. This is an exception to the General Indexing Guidelines." What about if there is only a surname for the mother - do we index that for the child or just mark it blank?