Complex sentence: After the war ended, Holden was appointed Governor by President Andrew Johnson, and played a central role in stabilizing the state during the early days of Reconstruction (he placed the "Standard" in the hands of his son, Joseph W. Holden).
Split into simpler sentences: After the war ended, Holden was appointed Governor by President Andrew Johnson. He played a central role in stabilizing the state during the early days of Reconstruction (he placed the "Standard" in the hands of his son, Joseph W. Holden).