U.S. Marine Corps [MC], First Marine Division #13040656

members (measured 13 Oct 2026, 03:12 UTC)

26 November 2021

created (per Roblox API)

10 August 2026

first measured by this register

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
15 Aug 2026, 10:26	4	first reading

Ownership

Owned by YouHavePTSD (@oborowski) as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

YouHavePTSD (@oborowski) — President (rank 255)

@kaizvxr — [XO] Executive Officer (rank 10)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

President1

Vice-President0

[CG] Commanding General0

[DCG] Deputy Commanding General0

[CSM] Command Sergeant Major0

[CO] Commanding Officer1

[XO] Executive Officer1

[BCO] Battalion Commanding Officer0

[CCO] Company Commanding Officer1

[CEO] Company Executive Officer0

[CI] Combat Instructor0

[PL] Platoon Leader0

[PS] Platoon Sergeant0

[1P] First Platoon0

[2P] Second Platoon0

Member4

[AP] Awaiting Placement0

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

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-[BMA] British Military Academy-#13020131 · 2 shared members

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Wiggity.#12836673 · 1 shared members

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18,603,887

Current.#34852864 · 1 shared members

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Rumble Studios#3333298 · 1 shared members

11,232,079

⨯ Small World Games#17140361 · 1 shared members

10,072,971

Badass Experiences#9825692 · 1 shared members

8,774,474

Powerful Studio#5522949 · 1 shared members

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(学乱) Gakuran#416091513 · 1 shared members

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Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.