The National Archives online appears to have his service information available now. 

Ancestry has census info that puts him in Ohio in 1940. 

Thank you to the Local History & Genealogy Center of Warren-Trumbull County Public Library for looking at this information and sending me what they found for Daniel Wilber Glassford.
They found: the city directory that lists him as being in the Army, his father's obituary that lists him as being in Miami Florida (and a sister in Indiana), and his high school yearbook photo.

Sacramento Coroner Link

Case Number 88-00599
Race White
Gender Male
Age Unknown
Estimated Age Unknown
Height 5' 4"
Weight 128 lbs
Eyes Unknown
Hair Bald
Date Found 1988-02-19 T0 8:00:00Z
Date of Death Unknown
Case Information: Washed up on the embankment of the Sacramento River at Miller Park. Fingerprints on file.
Scars-Marks-Tattoos: There were old-healed white linear scars present on both lower quadrants of his abdomen/groin areas. On the right side, the scar measured 12 cm in length, and on the left side, the scar measured 7cm in length. At one time, there had been a fracture of the right side of his lower ribs. There was a third well-healed linear scar on the right upper quadrant measuring 9.5 cm in length. Indiscernible tattoos (some having a military insignia appearance to them) were seen on his chest, right upper arm and forearm, and left upper arm and forearm.
Clothing Wearing brown-tan boxer shorts with blue stripes and a white or tan short sleeve shirt.
Jewelry A yellow metal earring with a purple stone in his left ear.
Other distinguishing characteristics He had no teeth. His head was bald except for a very small amount of tightly curled, black hair around his left ear.
Sketch NO
Identified NO