I couldn't believe it when you mentioned the name John Laven.. I have found the Watkins' & Haldane' quite difficult to research, and yet the first connection made is another Laven, wow I have been wondering where that came from
So the first thing I did was to do a search for JLH which gave me a spouse.. Louisa (E Clarke), John a dock policeman, they lived in Deptford in 1939, this has to be correct?
More about you and your research.. do you have some sort genealogical programme, I use My Heritage, I could add you as a guest so that you can have a look around. I would need your email address for that.
Apart from that, I would prefer you asked specific questions rather than let me ramble on
Would like to attach a couple of photo's but need to figure out how to.
Btw. in the 1939 it gives another Rose b.June 22 1909 would this be a sister of Louisa ? (Mother of our Louisa)