[1] After accepting the rank of brevetted second lieutenant in the United States Army on 1 July 1833, Myers was stationed in Baton Rouge, Louisiana with the 4th Infantry Regiment.

[4] Myers served in Florida from 1836–1838, fighting at Camp Izard and Oloklikaha, and receiving his promotion to first lieutenant on 6 September 1837.

From 1838–1840, Myers worked in the recruiting service; with a promotion to staff captain on 21 November 1839, he transferred to the Quartermaster Department in St. Augustine, Florida.

While stationed in New Orleans on 28 Jan 1861, at the behest of Louisiana state officials, Myers "surrendered the quartermaster and commissary stores in his possession" before immediately resigning from the US Army.

By the 1930s, it was determined that while Myers had been very skilled at accountancy, he could not think outside his US training and experience, nor could he rise above "the laxity, carelessness, and inefficiency of remote subordinates".

[6] In 2000, Robert N. Rosen's The Jewish Confederates said that while there had been complaints about Myers from War Secretary James Seddon and General Robert E. Lee, President Davis had used the letter of the law to appoint his friend—Lawton—in retaliation for Myers' wife having called Varina Davis a "squaw".

(Though as a Jew, Myers had seen some antisemitism in the Confederate ranks, Rosen explicitly argued that it had no bearing on Davis' actions.)

[3] Bruce Allardice's 2008 book Confederate Colonels concurs with much of the Rosen's analysis, though merely says that Myers resigned on 10 August 1863.