Whats my brother’s name?

I’m having an interest conversation with Ida for a while. A few months ago, both Anne and I asked Ida whether she would like to have a brother play with. She laughed at it then, but now she has more interest. She wants a big brother, and the reason being she wants to play with him. Today she asked about her brother’s name. We had no idea to tell her, but she suggested Trevor who was her friend at Kids R Kids.