Encounter at Cold Harbor, Bonnets and Bugles Series by Gilbert Morris and published by Moody Publishers.
The war between North and South grinds on. Jeff and Leah Carter, sixteen and seventeen now, face a new set of personal problems as well. Confederate soldier Jeff can't see why Leah is upset,just because she found him at the theater with another girl. Leah offers to care for Jeff's baby sister, but what will happen when Leah becomes ill? Captain Majors, Jeff's wounded father, finds relief from his loneliness in a growing friendship with pretty Eileen Fremont. But Jeff can see the direction things are heading, and he doesn't want a stepmother! Then the Northern army invades Virginia, and Jeff finds himself caught up in the terrifying bloodbath of Cold Harbor. A Civil War tale of adventure, love and family loyalty.