these are baptismal register entries not Birth entries (tho baptism at this period was generally within days - however sometimes there is confusion in some transcriptions as there may be 2 entries - a private baptism (for a sickly child) and the public reception into the congrgation some time later(a week or even upto 6 months or so). The last two look like twins - normally these would be so indicated (I havn't looked at the Braddan reg) - the entry in the Santan register states marrage 'in Braddan' but there is no corresponding entry I could see in the official transcription of the Braddan register