A brother and a sister for a character named Reeve

I have this character named [name_u]Reeve[/name_u] [name_m]Hawthorne[/name_m] [name_u]Frost[/name_u]. He has two younger siblings, but I can’t find names that I like. These are the rules for the names:
• Somehow connected to the name [name_u]Reeve[/name_u] , but not obviously. NOTE: this makes rhyming and names starting with R disqualified.
• Names that sound or look like [name_f]Ellie[/name_f], [name_m]Basil[/name_m], [name_m]Rupert[/name_m], Tedros and [name_u]Orion[/name_u] won’t do. They are already used.
• No nature names, I’ve used those too much in my book.
• Connection is equal. [name_m]Say[/name_m] you want to suggest [name_m]Trevor[/name_m] [name_u]Blue[/name_u] and [name_f]Evie[/name_f] [name_u]Red[/name_u], that makes their connection stronger because of their colour middle names.
• No popular names. If it’s not popular in the US, but is in the UK or [name_f]France[/name_f], I might bend this rule.
NOTE: the two siblings are NOT twins. [name_m]Just[/name_m] in case. I also hope that there’s a combination including [name_m]King[/name_m] or [name_u]Kingsley[/name_u] that I like. Middle name is optional.

NOTE 2 CHANGE OF PLANS: Hi, everyone. Thanks for suggesting these remarkable names such as Spencer, Granger, Poet and Abbott! Sadly, I’ve chosen different names and I need the expertise of all of you! What do you think about:
• Reeve Hawthorne Frost
• Webster ‘Webb’ King Frost
• Malasintha ‘Mal’ Angelou Frost
Some of you may not know what Malasintha means. It comes from Amalasuintha, which means ‘strong worker’. I guess it can be included as an occupational name, but what do you think? Webb and Webster means weaver. The middles are famous literature-making figures that their mom loves. So, what’s your opinion? Should I go with Malasintha or Harper or Poet? Should I change Webb to Granger or King to Weston? All opinions are welcomed, along with name suggestions.

[name_m]Granger[/name_m] for the brother
[name_u]Poet[/name_u] for the sister

They’re all occupational names.

[name_m]Granger[/name_m] [name_m]Weston[/name_m]
[name_u]Poet[/name_u] [name_u]Harper[/name_u]

Middles are surnames. Or they sound like it.

[name_u]Reeve[/name_u] is an English occupational name meaning bailiff so maybe other occupational names would work.
Some suggestions:
[name_u]Harper[/name_u]- harp player
[name_u]Bailey[/name_u]- law enforcer (bailiff also)
[name_f]Paige[/name_f]- page to a [name_m]Lord[/name_m]
[name_u]Poet[/name_u]
[name_m]Warren[/name_m]- park keeper
[name_m]Archer[/name_m]
[name_m]Keller[/name_m]- store master
[name_m]Banner[/name_m]- flag barrer
[name_u]Abbott[/name_u]
[name_u]Spencer[/name_u]- house steward
[name_m]Keifer[/name_m]- barrel maker
[name_u]Mercer[/name_u]- merchant
[name_m]Tanner[/name_m]

Middle names could be anything to suit any needs that the first names are lacking so I will table that for now.
[name_f]Hope[/name_f] this was helpful.

You could always do [name_u]Spencer[/name_u] for the younger brother and call him [name_u]Spence[/name_u] and for the girl, [name_u]Harper[/name_u] [name_f]May[/name_f] could work and the brother’s middle name could be [name_m]Weston[/name_m] if that works for you.