---
title: "Barbara L. Marcum — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f37dc5bb-c487-5a65-b8c4-cf2c8d207992
json: https://whiteintel.dev/api/public/dossier/f37dc5bb-c487-5a65-b8c4-cf2c8d207992
identifier: icij:icijol-41634
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# Barbara L. Marcum

**Type:** Organization  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `icij:icijol-41634`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/f37dc5bb-c487-5a65-b8c4-cf2c8d207992  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f37dc5bb-c487-5a65-b8c4-cf2c8d207992  

## Ownership & control

### Holdings / subsidiaries

- **Avalon Development Group, Ltd** (authorised person / signatory of) — https://whiteintel.dev/entity/6020cee8-0e68-55d0-bd4d-2c39fa693a99
- **Avalon Development Group, Ltd** (beneficial owner of) — https://whiteintel.dev/entity/6020cee8-0e68-55d0-bd4d-2c39fa693a99
- **Avalon Development Group, Ltd** (director of) — https://whiteintel.dev/entity/6020cee8-0e68-55d0-bd4d-2c39fa693a99
- **Avalon Development Group, Ltd** (shareholder of) — https://whiteintel.dev/entity/6020cee8-0e68-55d0-bd4d-2c39fa693a99

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/41634

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Barbara L. Marcum**. Human view: https://whiteintel.dev/entity/f37dc5bb-c487-5a65-b8c4-cf2c8d207992 · Structured JSON: https://whiteintel.dev/api/public/dossier/f37dc5bb-c487-5a65-b8c4-cf2c8d207992._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._