Lyman H. Needham
This is a son of my children's 5th-great grandfather (Benjamin Cooley Needham) by his second wife (Lois Huntley Needham). His half-brother Silas Thayer Needham was their 4th great-grandfather. Silas' birth mother, Achsah (Thayer) Needham, Benjamin's first wife, died when Silas was only three years old, so he and his two young siblings considered their step-mother to be their mother, too. Silas' step-mother had nine more children with Benjamin.
Although not a direct ancestor, Lyman's story is interesting. He died as a Civil War prisoner at Andersonville in 1864.
"During the 15 months during which Andersonville was operated, almost 13,000 Union prisoners died there of malnutrition, exposure, and disease; Andersonville became synonymous with the attrocities which both North and South soldiers experienced as prisoners of war. " (Source)