The Unholy Three of the 618th Engineers in WWII: Stateside

Informal group portrait, probably same place and people. Annotated "Oh yeah!" (meaning unclear) and "Goldberg." The man in the middle with the canteen looks like Nieman. Goldberg is unidentified but the annotatation suggests he might be the one with the cap perched on the back of his head, doing the talking. June 1943.