If you didn't see my reply to your post on my Mary Johnson page, here it is again -
Wednesday 30 Dec 2020 Jen wrote:
"Thanks for your reply and I'm very excited to connect with another Johnson researcher!
I don't know who my James Johnson's parents were and therefore don't have a John Johnson in my tree however there was a James Johnson who leased a house at 71 Magdalene Street in 1851 which may be my 3x great grandfather and therefore he could be connected to your Johnson family in Magdalene Street.
Can you please send me any information on your John i.e. birth year, place and parent's names?
Looking forwarding to hearing back from you."
Further to my above message, I searched for your family on Ancestry last night and found the marriage of John and Catherine and the birth entries for their 4 children. I cannot see a connection yet however with more information I'm sure we can work it out.
My DNA test was with Ancestry and my user name is JenM1958.
Looking forward to hearing from you soon.
Jen.