Hi Neil
As I previously inferred, I met briefly Edith at Frank Lanes 80th birthday celebrations in Newark several years ago - I cant remember if Dawn was with her or not. I was advised by one of cousins that Diana had died - from recollection, she had moved to Germany some years ago. I believe Roy, Edith and the 2 daughters lived on Stephen Road, Newark and we lived on Lincoln Road, close by. Roy's brother Frank lived on Wolsey Road, but my closest uncle when I was young was George Lanes who lived on Park Crescent as we both travelled to see Nottingham Forest play - it was the same house in Park Crescent where Roy's father Wilfred Marshall Lanes died on 13 February 1963 - I was quite young then, but do recall that all the sons in the locality took turns to be by his bedside during his final hours. as you say, Roy died at a young age and for some reason, I recall that he was a lorry driver and died of a thrombosis (this as I say is mere recollection).
As far as the history of the family is concerned, the family in the near term came from Coleby near Lincoln - it is a stunning village on a cliff, there George Marshall Lanes had 8 children, including the said Wilfred Marshall Lanes. He then moved to Balderton near Newark and had 10 children of his own including Roy - of the ones I know about, the other siblings lived in Balderton, Newark, Nottingham, Lymington and North Hykeham near Lincoln. There are still many cousins living in Newark and Balderton who I occasionally see.
If you go into the mists of time before George Marshall Lanes, there is a connection with Laneham in the 18th century. This again is another pretty village towards the north of Nottinghamshire on the banks of the river Trent. The intriguing factor is that Ham in Anglo Saxon means village, so it implies it could be effectively be the home of the Lane! I have never found the time to carry out further research.