A quick check of my family history, and in 1851 Census part of the Williams family (my paternal grandmother's family name) were living at 2 Fullalove Alley. He was a ropemaker at HM Dockyard.
The Census runs Brook, then Bonney's Alley (or Larkins Alley is noted on the last two entries) then Fullalove Alley where it stops. A quick head count, about 8 pages at 20 per page, so 160 souls in that little passage.
His widow went on to have the Earl of Chatham beerhouse in the Brook, where she died in 1884.