I am in a dilemma as to how much material that was given to me by another person (to use in my memoir/biography) can I use when he has subsequently died? I think that I should be able to use quite a bit of this material, (which is actually about a school trip the subject took his high school students on, along parents and a couple of other teachers) on during the summer vacation. I think if I give the author of this story about the school trip credit for the segment he gave me, I should be okay. I will not be quoting him verbatim, since his writing skills are not very good. I will have to edit it as I go over it. I will leave out some details such as the meals they ate, as it was a band trip and their experiences performing in various towns is more relevant to my story.

Any feedback you can offer will be greatly appreciated.