There are 13 Piper L-4J aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1943 and 1962.
N7809C
1962 Piper L-4J
Winnett, MT
N3989B
1945 Piper L-4J
Lewes, DE
N4967V
1945 Piper L-4J
Owasso, OK
N5580
1945 Piper L-4J
Layton, UT
N75767
1945 Piper L-4J
Wasilla, AK
N94576
1945 Piper L-4J
Wilmington, DE
N87117
1943 Piper L-4J
Bellingham, WA
N10511
Piper L-4J
Tillar, AR
N14FK
Piper L-4J
Lone Jack, MO
N511BL
Piper L-4J
Locust Grove, GA
N5795N
Piper L-4J
Mount Sterling, IL
N66332
Piper L-4J
Canyon, TX
N68925
Piper L-4J
Battle Mountain, NV