We find records, such as the following words etched carefully into a basement wall in a collapsed building, where, protected from the elements, it remained intact:
Richard Albert May, Colleen Bowles-May, Howard Karl, and an unknown infant took shelter here on Thursday*. Remained two weeks. Baby would not take a bottle and died due to malnutrition. HK left to try to find help but did not return. Out of food must move on.
*The assumption is that, since the writer does not specify, the Thursday in question must be the first Thursday after the day the dead began to rise.