Poplar Lane was and is a street in the Northern Liberties, though now it's called Poplar Street. Part of it-- up to 2nd Street-- was occupied by a ropewalk in the late 18th century. It was not covered by Francis White, and so the only listings would be those of John MacPherson in 1785 and Clement Biddle in 1791. There are no matchups. Note that with the possible exception of innkeeper Hoffman all the 1791 residents are still on the north side of the street, due to the ropewalk.
SOUTH SIDE
No listings.
NORTH SIDE
(1785) #407, Preston, Widow
(1785) #408, Stare, Martin
(1785) #409, Rity, Widow
(1785) #415, Shepherd, William
(1785) #422, Rush, Lawrence Samuel
(1785) #426, Spruson, John
(1785) #441, Walker, Widow
1791 LISTINGS (all on the north side, too):
(1791) #11 Poplar Lane, Pester, John, labourer
(1791) #17 Poplar Lane, Jenkins, Esther, widow
(1791) #17 Poplar Lane, Lamb, Joseph, labourer
(1791) #19 Poplar Lane, Teel, Jeremiah, labourer
(1791) #27 Poplar Lane, Squash, John, labourer
UNKNOWN SIDE:
(1791) Poplar Lane between 3rd and 4th St., Hoffman, Gottlieb Daniel, innkeeper