Following the surrender of Port Hudson, two Union divisions were shifted to Donaldsonville by transports, to move inland and pacify the interior. They marched up Bayou Lafourche, a division on each bank. Confederate Brig. Gen. Tom Green posted a brigade on the east side of the bayou and placed his second brigade on the other side. Estimated casualties: 463 total (US 430; CS 33) The restored plantation home, built in 1847 by a leading sugar planter, is maintained as a private museum filled with period furnishings. It is located on Highway 1 South near Donaldsonville.