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- [S2364] Anonymous. “Re: zur Lippe Family.” E-mail message to BENR. 16 July 2007.
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- [S9110] Von Flotow, Marie-Elisabeth. “Re: von Flotow Family.” E-mail message to BENR providing additional verified evidence (101053). 14 August 2020.
- [S9212] Vivian Smith, Charles, 5th Baron Bicester. “Re: Vivian Smith Family.” E-mail message to BENR providing additional verified evidence (101053). 15 December 2020.