William @WIlliamMarTheDev #2613148897
292
followers (as measured)
30 May 2021
account created (per Roblox API)
21 Aug 2026, 13:05
last measured (UTC)
Username record
@WIlliamMarTheDev — observed 21 August 2026
Roblox’s API lists prior usernames without dates; the dates above are when this register observed each name, which bounds — but is not — the change date.
Groups owned (as measured)
Open data
Download this user’s observed record: username history (CSV) · record (JSON)
Also a member of
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11,256,401RB Battles Games#6321191 · [RBB] Fan - Team RBB
761,173 † Christians of Robloxia †#184799 · Christian
673,542Green Balloon#5235531 · Member 🎈
10,435The Creator Awards#35050711 · Member
5,352Membership and rank as measured from this user’s public group list.