Shared DNA Amounts --Example of variation

Looking at shared amounts of DNA between Mom's Hale/Hitchcock 2nd Cousin.

That cousin is a 2nd Cousin once removed to me and my siblings.  My brother and sister get a substantial amount of the DNA she shares with this cousin.  However, I get a much smaller amount and that amount is low enough that Ancestry applies Timber and it shaves an additional 19cM.

I also see this in my Cook(e)/Putman line where my brother shares a much smaller amount with several of our 2C1R than my sister and I share with them..