I have looked at some of the genealogy surrounding John Owen. When he married Ellen Owen in 1904 his occupation was shown as a Pierman. This has his father as John Owen (deceased) and his occupation was given as Pierman. John Owen's (junior) death certificate in 1931 shows he was a Pier Attendant. This family has very close connections over a long period of time with Llandudno Pier and I would be surprised if there was nothing documented about them.
The 1911 Llandudno census has John Roberts, age 53 Pier Master. He is married and living in Ash Grove, Arfon Ave, Llandudno. He shows that he works for the Pier Company.
There is also William Hugh Owen, age 32, a Pier Labourer, married but a Lodger in Trefriw House, Lloyd St, Llandudno.
Thomas Barrow, age 52, married, Pier Porter and Chimney Sweep, living in Balmoral, Trinity Square, Llandudno. Thomas appears to be self employed.
Next is William Jones, age 44, married, Pier Man (general) employed by Pier Company. He is living in Stone Grove, Taliesin St, Llandudno.
Not a worker on the pier but interesting to note that William Frederick Mason, age 62, born Manchester and living at Gogarth Abbey, Llandudno, shows he is a Director of limited liability companies engaged in Lead Mining, Pier Company, Rubber Machinery and General Engineering.
This may give you a clue as to the other people in the photo.
Helig