Statistics for occurrence #1 of “Lieutenants B. H. Porter” in chapter 1.6 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War. Volume 4.:

...lled, wounded, and missing, out of 400 men. Among the killed was Lieutenant C. H. Bradford of the Marines. Lieutenant E. P. Williams, Executive of the Powhatan, a brave and dashing officer, and Lieutenants B. H. Porter and S. W. Preston were taken prisoners. They were all exchanged, and Porter and Preston were killed in the second attack on Fort Fisher. Preston, Porter, and Forrest — the last of whom died...
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