U.S. Underwater Demolition Team 1950s #5142554

members (measured 12 Oct 2026, 18:01 UTC)

31 August 2019

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 We do not publish numbers we have not measured.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
23 Aug 2026, 08:08	1	first reading

Ownership

Owned by @1950HOLD 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

@1950HOLD — Commander in Chief (rank 255) terminated

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

Rank structure

Commander in Chief0

War Department0

Navy Staff0

Commanding Officer0

Executive Commander0

Master Chief Petty Officer0

Team Leader0

Team Executive0

Team 30

Team 20

Team 10

Member1

Awaiting Assignment0

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.

U.S. Army 1950s#5140914 · 1 shared members

U.S. Uniform Exchange Services#5143819 · 1 shared members

U.S. Officer Ranking System 1950's#5140908 · 1 shared members

U.S. Marine Corps 1950s#5140912 · 1 shared members

U.S. Military Police 1950s#5147536 · 1 shared members

U.S. Navy 1950s#5140913 · 1 shared members

U.S. Air Force 1950s#5140911 · 1 shared members

U.S. Fleet Forces Command 1950s#5148522 · 1 shared members

U.S. 25th Infantry Division 1950s#5143821 · 1 shared members

U.S. Rangers 1950s#5147275 · 1 shared members

U.S. Department of Defense 1950s#5142564 · 1 shared members

U.S. Training Education and Command 1950s#5147318 · 1 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.