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    In addition to burnt deaths, deaths by heat, gas, or lack of oxygen happened in shelters "Bo-ku-go" and Japanese style building "Kura" that meant to be fire resisting. Then-mayer Yoshitaka Tsuruta was killed in a shelter by this type of causes. Some dead bodies were not damaged as bad as being burned, but some were miserable.

    == Some shelters were buried during the raid. People dug and opened such shelters to check inside after the air raid. All people inside were dead. Bodies in closed space were steamed by heat; one body lost head, another lost legs. One person could be identified by a bank note. That paper got wet with body fat.(ref#2 pp232)

    Although the incendiary bomb is to ignite fire and burn everything, a large number of the bombs caused another type of death. That was direct hit on human bodies. The number of bombs dropped onto Nagaoka was approximately 150,000 as twice as the population. Some were explosive and some were unexplosive, but in either case, so many people were directly hit by the bomb and then died.

    == A father was holding up his child, then threw the body into Shinano River from the bank. The child was already dead by direct hit. People around the father did nothing, just saw the child body was rolling down the slope and falling into the river.(ref#2 pp193)

    == An incendiary bomb pierced the throat of 4-year and 6-month old boy. The bomb was unexplosive, but killed the boy in a moment. The day, his mother had put red socks (kind of shoes) on his legs. Although there was no probability that B-29 crews could see the red socks and target them, the mother regreted to have done so.(ref#1 pp253)

    == Late afternoon in the following day, a boy found his younger brother lying near the main gate of a high school. The younger brother, who was ten years old, was hit by incendiary bomb in his head. The bomb perforated the head cover, blew away a half of head. Brain tissue could be seen.(ref#1 pp274)

    There were some other minor causes of deaths, for example; Drowning in Shinano River(ref#2 pp225) or Kaki River(ref#2 pp348), heart-attacks came from shocks and fears caused by air raid and strong fire.(ref.#1 pp97)