"When leaving Morrison Hill, C Battery's men were very downhearted. They did not know till days later why it had been necessary to surrender and to this day they feel thwarted in their desires to lock grips with the enemy."  

Battery C, 60th Coast Artillery (Anti Aircraft)

Chicago comprised four  3-inch guns on the military crest of Morrison Hill

Unit History by Captain Godfrey R. Ames

Narrative History by Captain Godfrey R. Ames

CORREGIDOR - FROM PARADISE TO HELL, the so-called history involving Battery Chicago,  exposed as an unreliable document due to deliberate misrepresentation of facts by its author- see 
The Final Battle of Battery Chicago (Morrison Hill)