Hello everyone. Sorry I'm such a late arrival to the party, but I can't thank you enough for all having a crack at this.
ShaunJ, that's amazing that you found them all under an alternative of 'Latin'. There is no way I'd have considered that.
I have been pondering over the two Thomas Squires Tutins born in Belfast for a while now and the later one is of course the living brother. I am wondering though if the earlier one was their child as well who perhaps died as a baby. The name is unusual enough to be more than a coincidence. They married in 1882 and the first living child was born about 1886. Perhaps years down the line they felt comfortable enough to try that name again.
To answer your question toni* Henry is down on the marriage certificate as a house painter.
I'd probably better fill in more of what I already have on the extended family. I have a fair bit of information on the Tutins and Ellerbys going back to pre registration period and have found most of the censuses on that side. I can confirm that Tom was listed as a joiner in 1881, but by the time he married he was an engineer (which may have been what took him to Ireland). The 1911 Ireland census has confirmed some of the names I was given for Arthur Ellerby's (gathering he was known as Ellerby now!) siblings. I was given the names Eva, Kitty, Peggy, Tom and Ernest. Eva must be Evangeline and could Kitty be Kathleen? Ellerby and Ernest did indeed go to Canada in 1920. Ernest went back to Ireland a year or so later, but Ellerby stayed with his partner (he was previously married to my Great Grandmother so couldn't remarry [didn't stop my G Gran though who declared herself a widow!!]). He had two more children in Canada. Thomas Squires Tutin went to the USA where he married and later died. What I'm really struggling on at the moment is finding deaths for Tom and Lily. I was struggling to find all their children as well, but that census sheet has certainly helped there.

Ellerby was apprenticed to Harland & Wolff about the time of the Titanic's construction, but I don't know if he actually worked on it. He nearly got a job on the crew, but was bumped at the last minute!