Tucker says she still occasionally writes letters on paper to post to her grandson in Denver and visits whenever she and her husband can.

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"Now she engages with me and other kids, writes letters and is potty trained, " her mother says.

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She writes it confidently and proudly, lower case letters and all.

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She furiously writes on the wall in artful rows of black letters, and Dr. Ledgard makes small-scale imitations of Louise Bourgeois sculptures.

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