Branches of Plymouth Brethren

The goal within the History is a complete list of every gathering that has existed in a province (or state) that has roots (or definite influence from) within any branch of the Brethren movement. If an assembly has changed in affiliation/format, that is noted with the abbreviation in parentheses, if known. In the examples where nothing is listed next to an era, it should be presumed it maintained the same affiliation as prior or subsequent. The following is the legend for various abbreviations listed in parentheses:

• (OB): Open Brethren: As opposed to the Closed or Exclusive Brethren. May refer to Chapels, Halls, or other types of names of churches that retain Brethren flavor (whether "loose" (open table) or "tight" (guarded table) to visitors.
• (BC): Bible Church: These are churches that are evangelical in nature, but with no recognizable traits or distinctives in being associated (in that era) with the Brethren movement, and a majority of its constituency may be unaware of its background.
• (EB): a generic term belonging to the Exclusive (and/or closed) Brethren, but thought prior to various nameable splits.
• (TW): Tunbridge Wells closed brethren network that split 1908-1909 from  Natural History Hall and/or Reading and/or Park St.
• (PBCC): Plymouth Brethren Christian Church, an Exclusive network led (in order) by F.E. Raven, James Taylor Sr., James Taylor Jr., James H. Symington, John S. Hales, and presently Bruce D. Hales. 
• More initials forthcoming as relevant to this list. See Assemblies Worldwide for a more exhaustive list of historic branches.

• If a link is in RED, no page has been developed for the assembly yet, and history is forthcoming, D.V.  If it is in BLUE, there is additional data.   Hyperlinks are generally reserved for the last known name of the assembly (with inclusion of former names with years known as).  
• Years listed are approximate (where known or theorized).  Sources include assembly address lists, ministry magazines, oral testimony, etc.  A plus sign suggests future years (or past) to be verified.   "2019+" indicates presumed present existence, and present years in bold print are reserved for churches with continued (definite) Brethren association.  Lacking a plus sign in either direction indicates known beginning or end dates.   
• Years with a slash may indicate what year Gospel work initiated, with the subsequent being the year the assembly first broke bread.    Some start dates in bold suggest further research, or highlight special accolades.  +1878 suggests (but not yet known) earlier start date but records unavailable, welcoming further research.