I was in another forum and someone was asking about COMPANY names in WWII. I threw in the fact that there was NO COMPANY J in WWII. Did ya know that.? They wanted to avoid confusion because the letter "I" looks too much like the letter "J", so they actually skipped it.
Here's more info on that:
The infantry regiment was organized with three battalions, twelve lettered companies (A-M, skipping J), an Infantry Cannon Company (first equipped with two halftrack-mounted 105mm howitzers and six halftrack-mounted 75mm howitzers or guns, and later with a towed short-barrelled 105mm howitzer), an Antitank (AT) Company (initially with twelve 37mm and later nine 57mm AT guns), and a Service Company. The fourth company in each battalion (D, H, M) were heavy weapons companies with sustained fire heavy machine guns and mortars. The regiment and each battalion also had a H&H Company. The regimental H&H Company included a Intelligence and Reconnaissance Platoon, the battalion H&H company included an Amunition and Pioneer (A&P, responsible for light engineering duties and for transporting ammunition forward to the line companies) Platoon and an AT Platoon (initially with four 37mm and later with 3 57mm AT guns).
If you want to read the entire article on army units during WWII, this is a good one:
Proud Daughter of Walter (Monday) Poniedzialek
540th Engineer Combat Regiment, 2833rd Bn, H&S Co, 4th Platoon
There's "No Bridge Too Far"