It's always so much fun and so exciting to receive letters from "my" vets. I never know what's going to be inside and it's always a treat no matter what the content. 
Today I received a letter from Cliff Duncan, 540th Combat Engineer, and he gave me more details. Here's a preview of what will be added to the site:
The 540th was in direct support of the following units at various times during WWII:
- 9th Infantry Division - 47th & 60th Infantry Regiments
- 1st Division - 18th Infantry Regiment
- 2nd Armored Division
- 82nd Airborne
- Darby's Rangers
- 3rd Infantry Division - 7th & 30th Infantry Regiments
- 36th Infantry Division - 141st, 142nd, & 143rd Infantry Regiments
- British 5th Division
- 14th Armored Division - 62nd Armored Infantry Battalion & 125th Armored Engineer Battalion
- 117th Cavalry
- 45th Infantry Division - 179th Infantry Regiment
Here's more info on the Anzio Invasion:
Made a 2 AM (nightime) landing. Mine clearance and obstruction removal across RED BEACH - area bordered by Anzio in the North, Canal Mussolini to the South. Supervision of off loading of DUKW's and other personnel carriers and equipment. Later rehabilitation of jetty, port of Anzio, reconstruction of bridges and roads throughout beachhead perimeter. Participation in breakout on May 26th and liberation of Rome, June 4-6, 1944.
The 540th was often responsible for its own area defense. This resulted in an expanded Table of Equipement (T/E) which included Sherman tanks, half tracks, and anti-tank guns, in addition to bazookas and the more usual equipment.
Some of this special hardware was employed in two behind the lines reconaissance landings in Sicily, employed in support of the Rangers during the Anzio landing, in support of the Canadian-American Special Forces along Canal Mussolini, and later during the Rhine River crossing in March of 1945.
Proud Daughter of Walter (Monday) Poniedzialek
540th Engineer Combat Regiment, 2833rd Bn, H&S Co, 4th Platoon
There's "No Bridge Too Far"