Hi,
I saw your message and I think I am from the Mckenzie family that you are looking for. My grandfather's name is Thomas Gordon Mckenzie, his father's name was Frederick Mckenzie and his mother's name was Etheal Sinclair. I know that he had a brother named Vivian and sisters Lilly, Doris and Christianna. I am not sure about the other names, I'll ask him about them. Feel free to contact me when you can.