Fox's mom was named Vixy Reinard McCloud. She was mentioned in the 1993 Nintendo Power comic. It is known she died very early in Fox's life and that he was raised by his father, James. However, if you're only observing the video game cannon: James McCloud is Fox's only parent that is ever mentioned in the games. Therefore, most fans assume the appearance of Only James McCloud indicates him as a widower and Fox's sole/remaining parent. Hope this helps.