I should add that I'm having difficulty sorting out the "correct" Daniel Steele Jr.
There appear to be two born around the same time. One was married to Mary McEachen in 1856 at St. Peter's in London and had children: Peter 1857; Alexander 1859; Donald 'Dan' 1861; Catherine 1863 & Mary 1867. I believe this might be my missing Donald Jr.
The other Donald Steele was first married to a Mary Unknown and had children: Catherine 1857; Janet 1860; Rachel 1861; Peter 1864; Mary 1865 & Margaret 1866. His second wife I believe was Christina McIntyre and I did find a marriage record for them in 1868 which states Donald's parents as Donald Steele & Mary McEachen (can't be the same as the above couple). Donald & Christina went on to have 4 more children.
Any advice on how to determine the lineage of the one Donald Steele & wife Mary McEachen would be greatly appreciated. I think a trip to London, Ontario will be in my near future.