Captain Sandra Hiroshi was the Captain of the EAS Churchill.
After the Earth Alliance Civil War broke out, the Churchill joined the EAS Alexander at Babylon 5. Hiroshi came with a message that Clark had ordered the bombing of Mars for refusal to implement martial law.
Not soon after her arrival, forces loyal to Clark arrived at the station and an attack soon ensued.
Sandra Hiroshi, along with her crew, were lost during the battle.