ah, a senior moment Dr bill, i brought up glebe last year, and you made almost the same comment!

i used to live a Zerega Avenue in the bronx, Glebe Avenue terminated outside my door(like a T). Glebe Ave. doesn't run straight, but makes a dog leg round to Westchester Ave, and at the other end terminated near St Anne's church-- the building is new, but the alter was donated to the church by Queen Anne. (zip 10473 i think, in the bronx if you want to see it!) the avenue marks the edge of the old church glebe.
--trinity church (in Manhattan) had a glebe avenue too, but its been renamed..(and i forget--learned that from the book Gotham--Rector street is from the church rectory)