Well, my day job is in Information Technology, supporting operations of 5,000 computers around the country, but for my hobby, I would heckuva lot rather do some research with a book. Until now.
Fred and Bill, I have been looking at "Victory Ships and Tankers" by Sawyer and Mitchell as this thread progresses and looking at Fred's Merchant Marine website too. The picture of Schuykill (earlier in this thread) with the stack amidships tickeled my fancy. There is no reference to that in my book, but Schuykill is listed as one of eleven T2-SE-A1s that were given to the Navy and completed as Navy tankers or oilers.
So the following group will all have Navy designators, full weapons fits (5", 40mm & 20mm, and masts and booms for supporting alongside replenishment in WWII):
Suamico(AO 49), Tallulah (AO 50), Pecos(AO 65), Cache (AO67), Millicoma(AO 73), Saranac (AO 74), Saugatuck (AO 75), Schuykill (AO 76), Cossatot (AO 77), Chepachet (AO 78) and Cowanesque (AO79).
Some may notice that Cowanesque and Cossatot are the two versions that Loose Cannon produces in their 1/700 T-2 Naval Tanker kit (http://home.earthlink.net/~loosecannonproductions/Kit12.html)
The above group are T2-SE-A1; the following navy tankers are T2-SE-A2:
Escambia(AO 80), Kennebago(AO 81), Lackawapan(AO 82), Mascoma(AO 83), Ocklawaha (AO 84), Pamanset (AO 85), Ponaganset (AO 86), Sebec (AO 87), Tomahawk AO 88), Pasig, ex-Mission San Xavier (AO 91), Ataban, ex-Mission San Lorenzo (AO 92), Soubarissen, ex-Mission Santa Ana (I) (AO 93), Anacostia, ex-Mission Alamo (AO 94), Caney, ex-Mission Los Angeles (I) (AO95), Tamalpais, ex-Mission San Francisco (I) (AO 96)
Though, just to complicate things, the AO 91 and AO 92 were converted to water carriers AW 3 Pasig and AW 4 Ataban, per Navsource, and I can't find them listed on the Merchant Marine site at all.
At any rate, the Merchant Marine Shipbuilding website that Fred provided gives great photos of these ships with their naval details and camouflage schemes. It is a good way to identify the ones to expect to find in naval service.
btw, I hadn't realized that the only difference from the T2-SE-A1 (including the group named above) and the T2-SE-A2 (mostly with the "Mission" prefix) was the powerplant. The A1 was rated at 6,000 shaft hp for 14.5-15kts and the A2 at 10,000 hp for 16 kts. Both had the same dimensions and the same boilers and similar machinery. There was a single A3 completed - Cohocton, also with 10,000shp.
Rick
(This material was explored and edited in several passes before posting, and the story got a bit too complicated, with conflicting and incomplete data from navsource and the others. I decided to stop while I was ahead)