On Ancestry.com [library edition] U.S. World War II Army Enlistment Records, 1938-1946 there is a record where the Branch and Branch Code is listed as "Branch Immaterial - Warrant Officers, USA". What does that mean?
The particular entry I was looking at was for: Joseph K. MEAGHER (b. 1910, NY; residence Livingston Co., NY; enlistment date 26 May 1942).
Name: Joseph K MEAGHER Birth Year: 1910 [...] Enlistment Date: 26 May 1942 Enlistment State: Texas Enlistment City: Fort Sam Houston Branch: Branch Immaterial - Warrant Officers, USA Branch Code: Branch Immaterial - Warrant Officers, USA
[Abbreviations used in this post: b. = born; standard 2 letter postal abbreviation for states; Co. = County]