Interesting finds
I have found references to Q.M.C. boats operating around the Canal. I presume the Q.M.C. is the US Quartermaster Corps.
One being;
KELLUM, J. A., 1st Class Private, Q. M. C. Born in
Onslow County; the son of Mr. and Mrs. C. C. Kellum.
Entered the service Feb. 4, 1918, at Durham, N. C. Was
sent to Ft. Scriven, Ga., and from there to Washington,
D. C. Transferred to Camp Merritt, Hoboken, N. J., and
to Newport News, Va., then to Porto Rico. Was sent
from Porto Rico to Balboy, Canal Zone, from there to
Gattun, Canal Zone. Was in charge of Q. M. C. boats dur-
ing the war. Boats were J. W. McKey, Conyoy Q. M. No.
1, and the Buck.
Had charge of all the Q. M. C. boats on
Panama Canal during the war. Left Panama April 10,
1919. Landed at New Orleans April 18, 1919. Was sent
from there to Camp Shelby. Mustered out at Camp Jack.
son, S. C., April 27, 1919.
from
http://images.dcr.state.nc.us/wwi/part4/2645.txt
Mike