And I don't understand "Re: #12 service, it is mentioned on the link you sent me. It isn't a matter of the Lex being extended, but of being cut back. It was the original service to 168 St, then traded with the Broadway L when the latter got enough steel cars to run the service. So different trains of the Lex ended at Eastern Parkway or Crescent or 111th. When the Lex was discontinued, #14 trains covered runs to Crescent and 111, in addition to going to Canarsie." When the Lex was discontinued, it only ran to Eastern Parkway ().