
author
A Civil War veteran turned memorialist, he helped preserve the story of Company K of the 140th Pennsylvania Volunteers for later generations. His surviving published work offers a firsthand connection to the soldiers, officers, and campaigns that shaped the regiment’s wartime experience.

by Benjamin F. Powelson, Alexander Sweeney
Alexander Sweeney is known as a co-creator of History of Company K of the 140th Regiment Pennsylvania Volunteers (1862-'65), a regimental history published in 1906. Library and catalog records credit the book to Benjamin F. Powelson and Alexander Sweeney, while other editions describe it as written by Powelson under Sweeney’s direction and with help from other members of the company.
The book itself identifies him as a first lieutenant in Company K during the American Civil War, and some records refer to him as "Aleck Sweeney." That connection makes him important not only as an author, but also as a participant in the events the book remembers.
Very little biographical information beyond that role was easy to confirm from reliable online sources, so the surviving record presents him mainly through this one substantial contribution: helping preserve the shared memory of a Pennsylvania regiment and the men who served in it.