Sorry, I didn't see your messages until now. Yes that's him in the later returns. The full page does at least prove that this isn't merely the local officer's quirky way of entering "Ag Lab", but I've not seen anything like it before though you'd think such an abbreviation would be standard or at least widely understood. At least this fellow is a doddle to track compared to his mother. If we believe the accepted 'facts' she had a child at about 48, has no baptismal record though her siblings do, and there's no sign of her husband's second marriage though he has a wife on the '51 census, with very similar DoB and PoB - not the village they lived in - as the first wife, just a bit younger to make that late birth more likely. I'm wondering whether she's the same woman, baptised, died and recorded on the census[es] as Sarah but wed and entered at her children's baptisms as Mary.