VIDEO: Quest to find the missing names of people in iconic O'Donovan Rossa funeral photograph

It’s a photograph that may have been seen by millions over the last 100 years – but how many people other than Pádraig Pearse did they all recognise?

A project to put names to the faces in the crowd has positively identified dozens. But Glasnevin Cemetery – where the historic photograph was taken a century ago today – hopes more relatives will come forward to help fill the remaining gaps.