Possibly "Organized Militia" Corps?
"O.M. Corps" is a common notation on grave markers of US Army veterans of World War I, but I cannot find a US Army manual or database defining it, except one 1925 US Army Manual defines O.M. as Organized Militia (an older name for the National Guard I believe).
Mary Kate OlsenMarie Osmond
M-O (Microbe Obliterator) .
Some of his early drawings were monogrammed O M
M-O stands for Microbe Obliterator.
The Christmas song with the initials m o t t is "March of the Toys", words by John Alan Haughton and music by Victor Herbert. The song was written for the operetta Babes in Toyland in 1903.
M H O stands for My Honest Opinion... in MHO ... LOL
modus operandi
POEM
IBMBOJH initials first line of words in Christmas song
because i learn something
I am asking what does M.O. stand for when describing and offender. and Is there one meaning or are there several meanings?
Her Majesty's Stationery Office