amondg, Thanks for your reply. I already have several children born to John Laversuch and Mary Newman.
Today, whilst browsing, found the baptism of John jnr at Houghton Regis, on the same day as another previously unknown Laversuch child, Thomas. Quick check of GRO appeared to indicate that Thomas was indeed born Towcester, 1865.
I have since found that he died in 1868, registered Ecclesall Bierlow. The family had moved onto Sheffield later that year, where another son, William, was born.
My great grandmother, Mary Jane Laversuch, was born 30 Oct 1859 in Birkenhead, she was baptised in Beeley, Derbyshire, 6 Feb 1861, I missed her and Eliza (born 11 Jan 1862) at Houghton Regis as well. The family were on the move constantly, I missed out on Thomas until today.
Not strange to baptize several children together, especially when constantly on the move, but perhaps strange to baptize Mary Jane twice.
I hope someone has access to the original registers, to confirm details.
Regards Margaret