Special photography techniques are to be used to help catalogue a rare part of Second World War history.
An eroding 19m wall in Southampton has more than 100 names etched by soldiers on their way to the Normandy beaches.
More than 3.5 million servicemen passed through Southampton for D-Day and then right on until the end of the war.
Helen Wallbridge, from the Maritime Archaeological Trust, said:
"While they were waiting along this road ... They would just idly inscribe their names and home towns into this wall."
The crumbling Victorian wall is to be documented digitally to ensure the survival of the names and initials.
A lottery grant of £86,000 will go towards the specialist photography methods that will record the inscriptions.
The photographic survey will then make a 3D model that people can view online.
Volunteers are being sought to help with the project - which also includes cataloguing bricks held in local museum's storage from part of the wall that was demolished in the 1970s.