Blair also wrote about how grateful she was that Cooke had a relationship with her 8-year-old son Arthur Saint Bleick.

\"Mom, Arthur understood you so sweetly and I am grateful and pleased you loved him,\" she wrote.

\"I wish I could pay a back at home tribute to you ... to be in the company of my sisters: Lizzie, Katie, Mimi,\" she added. \"Thank you for your love, your loyalty. Usually, it is when us girls are Together as sisters, when we can better show what an original you were, Mom. A great. I hold you from here.\"

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