How does the war’s opening battle change attitudes in the North?

In 1862, there is a first Northern victory in Tennessee, and the name Ulysses S. Grant becomes familiar. When the news of Fort Donelson's fall reaches the town, people begin expressing their joy and admiration for Grant, but Matt doubts that the war will be over soon. Matt picks up the paper and reads a note sent to the Confederate general from Grant who demands unconditional and immediate surrender. The family is worried about Tom and Eb who have gone to fight for Grant's army. The battles are so intensely fought that Matt and Jenny choose not to read some of the details of it to Ellen.