There are three houses on Gerkin Avenue bordered by Woodrow Street and St. Mark's Church. The houses are 2309 (120A - 037209 0120A), 2315 (2315 (30A - 037201 0030A), and 2319 (30B 037201 0032B) - closest to St. Mark's Church property.

On the next block, Trott Ave, unmarked houses on the right are 2327, 2325, 2323 and 2319. At the corner of Woodrow, the houses are 10017, 10005 10003 and 10001.

Verified by Fairfax County, Virginia - Map Search.