Pfc. Gerald C Mull had just turned 19 years old when he died while serving with the Army in the Tay Ninh province of South Vietnam.

The Vienna native's name lives on the 45th row of Panel 49E at the Vietnam Veterans Memorial in Washington, D.C.

And while hundreds of thousands of men like Mull have been identified in a nation-wide effort to develop a picture database of those lost in the war, Mull remains without a picture; a name without a face.

Mull is one of six Vienna service members without photographs in The National Call for Photos, a project organized by the Vietnam Veterans Memorial Fund to match a headshot or portrait photograph to every service member listed on The Wall.

For more details on the project, click here.

More information on each of the Vienna men missing pictures:

Kirsten Petersen contributed to this story.