After the war, he was elected as a companion of the California Commandery of the Military Order of the Loyal Legion of the United States.

Moylan was then again promoted to the rank of captain in March 1872, and the same year married Charlotte "Lottie" Calhoun on October 22, 1872, at Madison, Indiana; they had no children.

She was the sister of Lieutenant James Calhoun, the brother-in-law of George Custer, who was killed in the Battle of Little Bighorn.

He was awarded the Medal of Honor for his actions on September 30, 1877, during the Battle of Bear Paw, Montana Territory.

That house was designed by architects Irving Gill and Joseph Falkenham, and is now on the National Register of Historic Places.

[2] On November 27, 1894, Moylan was presented with the Medal of Honor, the highest award in the United States Armed Forces, for his service in the Indian War Campaigns.