Body # 326 described as found with a "Steward's White coat" were Steward the only ones to wear White coats? Also described as wearing "light Check Overalls". Wouldn't overalls be worn by engineering crew?
From the clothing, most likely a kitchen hand. But don't place too much reliance on the estimated age. This was one of the last bodies recovered after several weeks, and by that time it was often hard to tell. The next body found, for instance, (no 327) was estimated as aged 38-40 but was actually 21.