I had gone to a supervisor in the past to disclose that inappropriate behavior in the workplace was happening. I viewed this behavior as harassment, such as a coworker rating women's attractiveness, sharing sexually explicit content, and asking inappropriate questions. I had also brought to the attention of the same supervisor that a coworker had referred to another coworker as a racial slur. At the time, nothing happened from these incidents, and I believe it may be because this supervisor is close with the people who said and did these things.
Recently, I approached both of my supervisors to talk with them about my experience in the branch and how I felt there was a hostile culture here. I also voiced that I didn't feel like I was being heard, because I had gone to a supervisor with these claims, and they had essentially been ignored, making me feel like the claims weren't valid.
Since then, I have been brought in to speak with my supervisor's supervisor. She wanted to know the names and details of these events. I described the events, but was hesitant to give details since these events have happened over the span of the past year. I did not see how disclosing the names of individuals in such a manner, especially if I had to work with these people still, would benefit me.
I have just received a call from the HR office essentially telling me that I must meet with them, and if I don't wish to, then can get an order from the director of our organization forcing me to. They said how I choose to conduct myself in the interview is my choice.
I'm concerned since these incidents happened in the past that disclosing names to HR is only going to make things worse for me. What would be the potential repercussions of not disclosing certain names and details?
Edit: when I spoke with the second supervisor, I explained the scenarios of what had happened, and told her that I didn't want to name the persons involved because the issues had happened in the past. She pressed me for the names but I repeated that i felt uncomfortable naming names at that point.