We have 24 objects that Mrs. R.A. Haldeman has been involved with.

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<ref name=CH>{{cite web |url=https://collection.cooperhewitt.org/people/18059567/ |title=Mrs. R.A. Haldeman |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=25 January 2021 |publisher=Smithsonian Institution}}</ref>