The letter writer who noted that "revisionist history is often times inaccurate" is quite correct. However, I would like to set some of his history straight.
While he's right that Baltimore had strong Southern sympathies, the same is not true for the entire state of Maryland. He feels that if Lincoln had not occupied the state that it would have seceded. Governor Thomas Hicks, who was governor at the time, refused to call a secessionist convention, regardless of the presence of Union soldiers in parts of the state. Without that, the state could not secede, and Hicks had no desire for the state to leave the Union, even though some Southern governors wrote him to do so.
After Governor Augustus Bradford was elected, a pro-Union man, there was absolutely no chance of a convention being called.
While there was strong Southern sentiment from Baltimore down to the Eastern Shore, there was no such sentiment in the western and northern counties bordering Pennsylvania. Made up largely of German farmers, they did not believe in secession and had no use for slavery. One only need look at the number of fairly recently arrived Germans who volunteered in the Union Army to see this. If by some chance Maryland had seceded, I would say that those counties would have split off during the war, like West Virginia did from Virginia.
A Southern Star for Maryland? No, only half a star, if the opportunity had arisen. Which it didn't.