—Union soldier Oliver Willcox Norton of the 83rd Pennsylvania Infantry, writes home about their advance on the Peninsula and capture of Great Bethel:
—Western Theatre. Gen. Don Carlos Buell, with his Army of the Ohio, has finally set out for the link-up with Grant’s Army of the Tennessee at Pittsburg Landing. After weeks of being held up at the Duck River, the bridges having been destroyed, the water level falls rapidly. Gen. William "Bull" Nelson’s division wades across the river on this date, to push on toward the rendezvous.
—Gulf Theater: William C. Holton, of the U.S. Navy, on board the USS Hartford, Farragut’s flagship, writes in his diary of a scouting sortie by Farragut’s fleet up to Forts Jackson and St. Philip:
—Union soldier Luman Harris Tenny writes in his journal:
"March 29th. Had a good bath in the creek, and washed my clothes—new experience. Very warm and sultry."
—Lt. Charles Wright Wills, of the 7th Illinois Cavalry in southwest Missouri, writes about the possibility of a naval battle at Island No. 10, and muses for a while on what would happen if the Southern naval fleet broke through, and steamed up into Union territory:
—The Richmond Daily Dispatch publishes an editorial excoriating those who are engaging in the illicit trade of cotton across enemy lines to Northern buyers: