Hello again Jan,
Interestingly enough, I looked through Sussex, Surrey and Hampshire IGI bases for a possible birth for Charlotte Trussler and I found one suitable baptism on the 16th November 1800 in Petworth. The parents were named as John & Mary Trussler. I think the Trussler's may have potentially had a connection to Headley, as I then found a buriel for a Mary Trussler.
It is obviously a previous generation, but I noted a Mary Trussler (spelt that way) Born in 1750 in Frensham, Surrey - Baptised on 22nd June 1751 same place and buried on 15th April 1802 in Headley. Her parents were John Trussler and Mary. So,perhaps Henry Courtney/Courtnage was working in or around around Frensham when he met and/or married Charlotte, and they moved back because both families had a connection to Headley?
I did manage to download one set of stripped census returns for Headley in 1841/1851 off Mr.Smith. I note that James who was baptised in 1825 was whilst Henry & Charlotte(potentially Trusler)were also living in the Parish House in Headley as were Henry & Charlotte Snr.
Mr.Smith tells me this was not a workhouse exactly, but it was a place people could go who had very little money.
This is looking a little more promising Jan don't you think?
Regards,
Lesley