Well, you could always just guess.
I don't know what '"the" alternative method for LC-MS analysis' is supposed to mean. There are lots of analytical methods.
Ohio District - LCMS - was created in 1963.
Southern District - LCMS - was created in 1882.
Nebraska District - LCMS - was created in 1970.
Texas District - LCMS - was created in 1906.
Kansas District - LCMS - was created in 1888.
Wyoming District - LCMS - was created in 1970.
Iowa District West - LCMS - was created in 1936.
Iowa District East - LCMS - was created in 1936.
North Wisconsin District - LCMS - was created in 1916.
Mid-South District - LCMS - was created in 1966.
Northern Illinois District - LCMS - was created in 1907.
Florida-Georgia District - LCMS - was created in 1948.