Having now been able to access Free Reg's parish transcription coverage list here is what the situation is for Chelmsford and Stebbing coverage. Stebbing: Zero. Transcriptions of Chelmsford St Mary Transcripts (held by the ERO):- Baptisms, Marriages and Burials: 1530 to 1819 Transcriptions from Chelmsford St Mary Parish Registers (held by the ERO) Baptisms: 1570 to 1789 & 1810 to 1819. Marriages: 1810 to 1819. Burials: 1810 to 1819. So I guess the only way to ensure that William Willis born 1793 at Stebbing wasn't buried there before the date of the marriage to Elizabeth Maskell 1819 at Little Bardfield, or a marriage to another Elizabeth come to that, is a search in Stebbing PRs on the ERO's SEAX Essex Ancestors. Plus of course a search of Stebbing marriages on the same site. Same site for verifying the Chelmsford St Mary baptism details of the children of William and Elizabeth Willis, just in case of any Family Search errors. On the plus side it's likely you could pick up extra info from the Chelmsford St Mary PRs such as the occupation of the father in each entry and what area the family were living in. The PRs frequently mention a father's abode as "of Moulsham", the records of St John the Evangelist, Moulsham don't start until 1837. An occupation example is one of my ancestors who baptised 10 children at Chelmsford St Mary 1775 to 1796, during that time his occupation went from a Glove Maker to a Breeches Maker, then a Pauper and finally a Labourer.