I’ve always thought [name_m]Gilbert[/name_m] was so handsome. I think he matches well with your other children in terms of vibes, but I also think he doesn’t feel as nature-y, which would probably encourage me to use it in the middle, if I were you.
I think [name_m]Gilbert[/name_m] is a bit more reserved and cozy, rather than adventurous. I picture him inside at a little log cabin, reading by the fire as he watches rain fall down on the pine trees!
I’d go with something like [name_m]Gilbert[/name_m] [name_m]Reason[/name_m] or [name_m]Gilbert[/name_m] [name_m]Augustine[/name_m]. Maybe [name_m]Gilbert[/name_m] [name_f]Forsythe[/name_f] or [name_m]Gilbert[/name_m] [name_m]Moss[/name_m] if I were trying to match C h a v a, H a z e l, and W o o d s!