I found this letter below published on May 5, 1861 in the Boston Daily Advertiser. As it notes, it was originally published in the New Bedford Standard. Unfortunately, the author of the letter as well as the recipient was not published. The letter writer describes passing time at the fort and in the last paragraph he talks about the playing of baseball. It is clear that he is familiar with the game, most likely having played himself or had seen the Ironsides or one of the many other clubs playing in New Bedford before the war.
[Correspondence of the New Bedford Standard.]
Fort Monroe, Tuesday Eve., April 30. 
Friend N– : I am now resting from the labors of the day smoking my pipe, and having an opportunity to directly mail a letter, I address to you. Today I have been very busy in taking account of Massachusetts stores sent to our Regiment from Philadelphia, and I have just now finished making out the invoices and receipts for the stores. Everything is kept by double entry here, inasmuch as we have to make two invoices and tow receipts for every item that passes through our hands. It stands me in hand to do it correctly for am personally responsible for everything I handle.
Not much is going on here since Sunday, except Sunday night, when an alarm was given from the “Cumberland,” and the Regulars were aroused and stationed at the guns. The Volunteers were not called up. Last evening, about 10 o’clock, a brass field piece, stationed at the gate, was discharged, which was a signal for every one to be at his post. A grand rush was made. The Guards were the first company in line – beating the Regulars. At an alarm like this, our Regiment take a position to command the north gate of the fort, while the Fourth Regiment are stationed at the south gate, and the regulars man the guns on the parapet. The excitement was high for a few moments, but soon subsided, and the men returned to quarters. Every man jumped to his equipments and gun, and there were no laggards I assure you. It was a good liking to try the spirit of the men, and it afforded additional proof of the desire to stand by the glorious Stars and Stripes. I almost forgot to say that the alarm was caused by the appearance in the offing of a large steamer, which acted rater queer for a while and then sailed away.
The men are employed in rather queer business sometimes, when not on guard, for instance this afternoon while I was on the wharf with my gang of men, George Sears came down driving a donkey cart, carting ammunition, and fresh beef. T. C. Allen, jr., was employed the same way, while A. Upjohn was bore teamer. Sometimes they roll beef and port, and then you will see them attached under some shade tree, devouring an Evening Standard two weeks old, or washing their clothes and drying them in the sun, of which we have a plenty, and we are all turning as black as Creoles. Mornings a portion of the Braintree company, Fourth Regiment, may be seen playing base ball, and a mighty smart game they play, it would do you good to see them. The band here is some – 25 members with any quantity of drummers. Every morning they come out at the parade of the guard for the day. This morning they made the air ring with the well known notes of Dixie.
Fort Monroe is located in Hampton Virginia and during the Civil War was still controlled by the Union despite Virginia’s succession from the U.S. I believe I have been able to identify the men he describes carting the ammunition and fresh beef. They were all enlisted in Company L, Massachusetts 3rd Infantry Regiment.
On April 13, 1861, two days after the battle at Fort Sumtner, the 3rd regiment was summoned to Boston. The regiment left Boston on April 18 and arrived at Fort Monroe on the 20th. The regiment returned to Boston on July 19. Company L may not have joined the regiment until after April 23 as that is the date the three men noted in the account above enlisted in the company.
George Sears was listed as being employed as a clerk at the time of his enlistment and a druggist in the 1860 federal census. He reenlisted in Company E of the 3rd Regiment in September of 1862. He was married to a woman named Caroline and had a daughter about three years old named Carrie at the time of his enlistment with Company L.
T. C. Allen, Jr. was most likely Thomas C. Allen, Jr. employed as a merchant/trader. He was living at home at the time of his enlistment. He mustered out on July 22, 1861. I’m not sure what his fate is after that. I did find a Thomas Allen about the same age that died of Brights disease in 1880.
A. Upjohn may have been Aaron Upjohn, Jr. He was a clerk with Buckminster & Macy, a dry goods business on Pleasant Street. Upjohn reenlisted in the navy twice after his time with Company L. Mr. Upjohn has a baseball connection as well. He played on the Bristol County Base Ball Club in 1858 and played right field as a member of the Wamsutta Base Ball Club in 1866.