Final answer:
Jonathan Dillon's personal sentiments regarding the attack on Fort Sumter are not on historical record. The general sentiment at the time was characterized by tension and resolve from both the Union and the Confederacy, leading to the start of the Civil War following the Confederate attack.
Step-by-step explanation:
Jonathan Dillon's feelings about the attack on Fort Sumter are not directly reflected in historical records. However, we can understand the general sentiment around the time of the attack. From the given context, when Confederate forces initiated the bombardment of Fort Sumter on April 12, 1861, which led to a 33-hour siege and eventual surrender of Union Major Robert Anderson to General P.G.T. Beauregard, the event marked the beginning of the Civil War. The decision to start the war was left in the hands of the Confederate President Jefferson Davis after President Lincoln's attempt to resupply the fort with provisions using unarmed ships, indicating that he would defend the Union against attack.
This move by Lincoln fulfilled his position to defend the Union and set a strong message against the secessionists. The Confederate's subsequent decision to attack the supply mission at Fort Sumter, as depicted in an 1861 lithograph by Currier and Ives, stoked the pro-war sentiment on both sides. Thus, while Dillon's personal feelings are unknown, the general atmosphere was one of tension and commitment to one's cause, be it the Union or the Confederacy.