〈 USM 〉 5th Marine Amphibious Corps 1940s #15286679

11

members (measured 13 Oct 2026, 05:56 UTC)

7 July 2022

created (per Roblox API)

10 August 2026

first measured by this register

Membership history

Growth

2 measurements taken within a single day, net -1. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 11–12 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
11 Aug 2026, 10:55	11	-1
10 Aug 2026, 20:31	12	first reading

Ownership

Owned by USM (@USM40s_GROUPS) 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

USM (@USM40s_GROUPS) — Holder (rank 255)

rated (@ratedreturns) — Supreme Command (rank 250)

foamypegasus (@FallenVallixx) — Supreme Command (rank 250)

Joe (@JoeOwns) — Placement (rank 215)

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

Rank structure

Holder1

Supreme Command3

Marine Headquarters0

Commanding General0

Deputy Commanding General0

Division Staff0

1st Marine Division0

3rd Marine Air Wing0

Placement7

Member11

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.

US Military 1940's ᅠ#14238839 · 4 shared members

The US Military 1940s#4545116 · 3 shared members

〈 USM 〉 United States Army 1940s#15143549 · 3 shared members

〈 USM 〉 Quartermaster Corps 1940s#15647338 · 3 shared members

〈 USM 〉 United States Marines 1940s#15144791 · 3 shared members

〈 USM 〉 Third Army 1940s#15286683 · 3 shared members

〈 USM 〉 2nd Armored Division 1940s#15643507 · 3 shared members

〈 USM 〉 101st Airborne 1940s#15286684 · 3 shared members

7

〈 USM 〉 3rd Marine Aircraft Wing 1940s#15667896 · 3 shared members

6

United States Army #3108077 · 2 shared members

The United States Marine Corpsᅠᅠᅠ#5655676 · 2 shared members

〈 USM 〉 Military Police 1940s#15570278 · 2 shared members

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.