What ended up happening to Bishop Morehouse?

Bishop Morehouse dies in the carnage of the Chicago battle between the mercenaries, the military, and the revolutionaries. 

Ernest explains that Bishop Morehouse "obeyed Christ's injunction" and was admitted to an insane asylum. Avis and Ernest try to get him out but are unsuccessful. They find out that he was admitted in a newspaper; the first asylum he is moved to is the Napa Asylum.

Avis explains that they tried to find him after he...

Bishop Morehouse dies in the carnage of the Chicago battle between the mercenaries, the military, and the revolutionaries. 

Ernest explains that Bishop Morehouse "obeyed Christ's injunction" and was admitted to an insane asylum. Avis and Ernest try to get him out but are unsuccessful. They find out that he was admitted in a newspaper; the first asylum he is moved to is the Napa Asylum.

Avis explains that they tried to find him after he was moved, but the search was in vain. Bishop Morehouse went from one asylum to another. They track him from Napa to Stockton to Santa Clara and then lose him entirely. Avis does mention that she did not see a record of his death and thus assumes that he escaped from the asylums. 

In Chicago, revolutionaries and soldiers battled each other. Many people died on both sides. Avis and Ernest are driving to get out of the city when they come across a large group of the dead—revolutionaries killed by machine guns and soldiers killed by a bomb. Avis says:

Ernest sprung out. A familiar pair of shoulders in a cotton shirt and a familiar fringe of white hair had caught his eye. I did not watch him, and it was not until he was back beside me and we were speeding on that he said:

"It was Bishop Morehouse."

Bishop Morehouse died during the fight in Chicago. It is impossible to trace what happened to him between his admission to the asylum in Napa the locale in which Ernest and Avis discover his body.