Has a loose end been tied up?
A John Allis was baptised at Newark, Nottinghamshire on the 26 August 1809 the son of William Allis, a carpenter and cabinet maker, and his first wife Mary. No other records have been found for him.
So it has been until a notice in the London gazette caught my eye. It was for a Mary Amatt Jowitt (1844-1923) who died intestsate and the notice in 1926 (25 June, page 4169) was a call for any claimants on her estate. The short note at the end said
"Note.—The intestate was the only child of John Jowett and Emma Jowett, his wife, formerly Emma Alliss, Spinster. A maternal uncle of the intestate named John Alliss, born in 1809, went to Australia many years ago."
Emma Alliss' brother was the missing John, so it seems he went to Australia.
At St Pancras, Middlesex in 1831 John Alliss married Eliza Vandercom who, with their four children, emigrated to Victoria, Australia in 1849. In the 1841 census at St Pancras John was not from Middlesex and he was a cabinet maker, but nothing else to indicate where he came from. He was also born in 1809 or 1810 which was confirmed from the passenger list and his age when he died.
This sounds very much like John from Newark who could well have learnt carpentry from his father. He also uses the Alliss spelling. When his father moved from Lincolnshire to Newark he tended to use the double-s spelling.
It's compelling but it would be helpful to have some more evidence this is the same person.
Interesting how a chance note many years after an event can spark some connections.
UPDATE:
I have been contacted by relative of John and shown a copy of his death record along with a second marriage both of which state he was born at Newark. That's great news and many thanks to Merran. Your help was greatly appreciated.