Final answer:
The provided references do not relate to Ingram's 10 principles of safety, therefore, an accurate answer can't be given without the correct source or additional information.
Step-by-step explanation:
The question mentions Ingram's 10 principles of safety, which does not seem to directly relate to the information provided, including a reference to principles connected with Earth and a general's responsibilities, and an introduction page authored by Gerald Bergtrom. There may be some confusion as the information given does not correspond to the question about Ingram's 10 principles of safety.
As a tutor who values accuracy and the provision of reliable information, it is important to clarify that the details needed to answer the student's question about Ingram's 10 principles of safety are not present in the references provided.
Therefore, it is not possible to give an informed or accurate answer to this question without the correct context or source material specific to Ingram's principles. It is advisable for the student to provide the accurate source or additional context so that the question can be addressed appropriately.