What about this sibset/family?

I am writing a kids novel, about three kids who discover a teleporter in a cave on their new property. What do you think about these names for the family:

Mother: [name_f]Hazel[/name_f] [name_m]King[/name_m], stay at home Mum.
Father: [name_m]Scott[/name_m] [name_m]King[/name_m], accountant
Daughter: [name_f]Marietta[/name_f] [name_m]King[/name_m], 13 years, nickname [name_f]Etta[/name_f].
[name_m]Son[/name_m]: [name_u]Douglas[/name_u] [name_m]King[/name_m], 10 years, nickname [name_m]Dougie[/name_m].
Daughter (twin) [name_f]Phillipa[/name_f] [name_m]King[/name_m], 9 years, ALWAYS called “[name_m]Kipper[/name_m].”
Daughter (twin) [name_f]Cecily[/name_f] [name_m]King[/name_m], 9 years, ALWAYS called “[name_f]Cilla[/name_f]”
[name_m]Son[/name_m]: [name_m]Archie[/name_m] [name_m]King[/name_m], 4 years.
Daughter: [name_f]Maisie[/name_f] [name_m]King[/name_m], 1 year.
[name_f]Cat[/name_f]: [name_f]Pati[/name_f]

Thanks :smiley:

I feel that [name_u]Douglas[/name_u] is out of place compared to the others.