Hullo - for some reason (perhaps as this is a new account, having lost access to my previous RW account) the system will not let me send PMs. I will try and investigate why this might be.
My interest in Belford is longstanding - I believe his family is connected to mine via his grandfather, who is my great (x4) grandfather (and my cousin has the middle name 'Provo'!), which makes us 5th cousins, 4 times removed, I think. I was unaware of any other family research into him, and would be interested with whom you are in contact, as my mother tells me I am the only one to do any genealogy!
He was born near where I live, and we share antecedent regiments (Royal Hampshire vs PWRR), and my family now are all from the Windsor/Maidenhead area. Earlier this year, in preparation for today's centenary, I visited Tyne Cot and paid my respects, which means that I have now visited four memorials with his name engraved.
So, overall, I started a school project about him (pre-internet era), and restarted it as a book 10 years ago (as part of family history research) and with fits and starts I am trying to keep it going. But I also have a full time job, which limits the time I can dedicate to primary research.
I very much appreciate that it may take time (and the right mood) to send and/or digitise this information, and I would, of course, pay any fees you incur (either to you, or via a third party). In the meantime, I will try and work out why PMs do not work.