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The red node is Mary. Pale nodes are charities, grey nodes are companies, and darker grey nodes are the people who sit on them. Dashed links are historical or inferred. Click any node to explore.

Person

Mary Teresa Casteleyn

Mary Teresa Casteleyn is a trustee of The Irish Genealogical Research Society. Source: Charity Commission records.

Trustee at The Irish Genealogical Research Society

  • 1 current role
  • Served alongside 19 people
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Official record Charity Commission · updated 18th October 2026

Roles

1 role across 1 organisation

Current roles (1)

Charity trustee roles come from the current Charity Commission register, which lists serving trustees only. Company roles, current and past, come from Companies House.

People Mary has served alongside

19 people across 1 organisation

Based on overlapping official board records. Calculated from official records It does not mean they know each other. Only formal co-service is listed: people are never joined on a matching name alone.

The Irish Genealogical Research Society 19 people · Current

Sources

Charity Commission
Register of Charities: current trustees and appointment dates.
Edition
Register edition compiled 18th October 2026
Identity
Records are treated as the same person only where our identity-matching rules support it. Confirmed relationships are supported by the approved identity-matching evidence and rules. Likely relationships are supported by sufficient evidence to suggest the records concern the same individual, but are not established as confirmed; they are shown with the label “Likely the same person”. How people are matched

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