United States Marines Corp [USMC] #4506608

members (measured 12 Oct 2026, 17:05 UTC)

30 October 2018

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 We do not publish numbers we have not measured.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
21 Aug 2026, 07:31	2	first reading

Ownership

Owned by @JacobMSantiago 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

@JacobMSantiago — [O10] Assistant Commandant of the Marine Corps (rank 255)

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

Rank structure

[O10] Assistant Commandant of the Marine Corps0

[O10] Commandant of the Marine Corps0

[O10] Secretary of Defense0

[O10] President of the United States0

[O1/O2] First Lieutenant / Second Lieutenant 0

[WO-1 / CWO-5] Warrant Officers 0

[E9C] Sergeant Major of the Army 0

E9A/B Master Gunnery / Sergeant Major 0

[E8A/B] Master Sergeant / First Sergeant 0

[E7] Gunnery Sergeant 0

[E6] Staff Sergeant 0

[E5] Sergeant 0

E4A/B Specialist / Corporal 0

[E3] Private First Class0

[E2] Private Second Class0

Member2

[E1] Private1

Guest0

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

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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.