Sorry, I did not notice your reply before now. Sometimes alerts that people have replied to my messages may have been sent to my junk mail and I didn't check my emails for a few days and missed the reply.
But I am interested to know what you can tell me about Bartholomew, if his date of birth is the same, Febuary 1905 and if you know he died in 2002 and other details.
What I can tell you is he was married to Ethel Aspden, who is still alive. They were married in October, November or December 1935. They had three sons; Donald, Neil and my father Lionel, as I've said before. Lionel married three times, his third wife being my mum in 1980. I was born in '83, my brother in '85.
Now my theory is if you are related to Bartholomew it would have to be his brother was possibley James.
Was the James Walmsley you mentioned born in Blackburn around 1905, earlier or later?
As for there being a lot of Walmsley's, thats true but I don't think, simply judging by my search through marriage and birth index's so far, that there were many Bartholomew's, at least cira 1905 or when he married, in the 30's, as I looked through many years before I found his marriage so we may well be related, but I dont know...