Hi Neil,
Totally agree about taking family legends with a (big) pinch of salt, but this is the first one I've found so i'm very intrigued!
Depending on what documents you look at the man in the picture is called William Henry Walsh (Welch) McConnell and sometimes just plain Henry McConnell. I have his marriage in 1883 in Warwick and his death in 1908 (In Warwick). He is on the 1891 and 1901 census in Warwick and is down as a Corporation Labourer born in Dublin. Ages given on his marriage and death cert would mean he was born in 1840 but have not been able to verify this.
I have only recently been given this photo and was told that he was in the Irish Fusiliers, well he may have been but I can see from his cap badge in the photo that it is the emblem of Warwickshire - bear and ragged staff. I don't know when the photo was taken. Last night another newly found relative said that they had been told he was a soldier of fortune.
Any thoughts would be greatly appreciated. Thank you
Zoe