How old is Lightoller in this particular Photo?

[Muhammad Ahmad]

This is a well known photo of Lightoller, but what do we actually know about it? He seems very young, so we can only assume that it was taken a while before the Titanic ever set sail. But some important questions regarding the photo.

Where was this photo taken? How old is Lightoller in this photo? What is the context of the photo?

Hoping someone knows a bit more about this photo than I do.